ZEKLER 412 RDB Hearing Bluetooth Radio Hearing Protection with Batteries User Manual

June 4, 2024
ZEKLER

412 RDB Hearing Bluetooth Radio Hearing Protection with Batteries
User Manual
412 RDB/412 RDBH/412 DB/412 DBH

F. Approval & Technical data

ZEKLER 412 RDB, 412 DB HeadbandF1 Weight 419 gF4 Size: M,LF8
EN 352-1:2002, EN 352-1:2020 F3

Freq. Hz| 63| 125| 250| 500| 1000| 2000| 4000| 8000| H| M| L| SNR
---|---|---|---|---|---|---|---|---|---|---|---|---
Mean att.F5| 21,0| 18,4| 21,1| 27,7| 36,9| 36,1| 42,1| 38,8| 37,2| 30,3| 23,6| 32,7
Std. dev.F6| 6,3| 4,5| 4,2| 3,5| 4,0| 3,6| 3,5| 5,4| 2,9| 3,3| 3,9| 3,2
APVF7| 14,7| 13,9| 16,9| 24,2| 32,9| 32,5| 38,6| 33,4| 34dB| 27dB| 20dB| 30dB

ZEKLER 412 RDBH, 412 DBH Helmet mount F2 Weight: 442 g F4
EN 352-3:2002, EN 352-3:2020 F3

Freq. Hz| 63| 125| 250| 500| 1000| 2000| 4000| 8000| H| M| L| SNR
---|---|---|---|---|---|---|---|---|---|---|---|---
Mean att.F5| 17,8| 16,3| 19,5| 26,9| 34,3| 33,8| 41,8| 37,4| 35,4| 28,6| 21,9| 31,0
Std. dev.F6| 4,2| 4,0| 3,2| 3,1| 4,0| 2,9| 3,3| 3,8| 2,1| 2,4| 3,2| 2,3
APVF7| 13,6| 12,3| 16,3| 23,8| 30,3| 30,9| 38,5| 33,6| 33dB| 26dB| 19dB| 29dB

Certification and Monitoring: PZT GmbH, Bismarckstrasse 264B, 26389 Wilhelmshaven, Germany,
Notified Body: 1974 F8, Notified by ZLS

Freq. Hz| 125| 250| 500| 1000| 2000| 3150| 4000| 6300| 8000| NRR| CSA
---|---|---|---|---|---|---|---|---|---|---|---
Mean att.F5| 17,5| 18,5| 27,2| 38,3| 38,8| 39,9| 42,1| 41,8| 42,6| 24| A
Std. dev.F6| 2,3| 2,6| 2,9| 3,3| 3,0| 2,8| 3,9| 3,8| 3,3

ZEKLER 412 RDBH, 412 DBH Helmet mount F2 Weight 489 g F4
ANSI S-3.19-1974 F3

Freq. Hz| 125| 250| 500| 1000| 2000| 3150| 4000| 6300| 8000| NRR| CSA
---|---|---|---|---|---|---|---|---|---|---|---
Mean att.F5| 17,7| 20,6| 29,3| 34,5| 37,4| 39,2| 41,1| 41,6| 37,8| 25| A
Std. dev.F6| 2,8| 2,3| 2,5| 3,1| 2,6| 4,0| 3,1| 3,5| 4,6

Michael and & Associates, State College, PA, USA, 2766 W. College Ave Suite 1 State College, PA 16801
Accredited by: National Institute of Standards and Technology (NIST), National Laboratory Accreditation Program (NVLAP) F8
F:9. Electrical input level (3,5 mm AUX)
263 mV = 82 dB(A)
Certification and Monitoring: PZT GmbH, Bismarckstrasse 264 B, 26389 Wilhelmshaven, Germany,
Notified Body: 1974 F8, Notified by ZLS
Criterion level EN 352-4
H= 108 dB, M= 103 dB, L= 94 dB
Environmental operating requirements:
-20 / +55 °C, < 90% humidity.
Do not leave the product in direct sunlight.
Store the product in the original packaging when not in use.

The Bluetooth® wordmark and logotype are the property of Bluetooth® SIG, Inc., and all use of them is subject to licensing agreements.
Bluetooth® standard here means that the product works with units that support a Bluetooth® headset and/or hands-free and/or A2DP profile.

Zekler BT BLUETOOTH® QUICK-GUIDE

Volume control
Turn the knob up/down to adjust Bluetooth® volume.| | Long press
Bluetooth® pairing,
Bluetooth® ON/OFF,
Reject call, Voice dial|
---|---|---|---
Short press
Answer/End call
2 short presses
Re-dial the last dialed number

Music streaming

  • Start Bluetooth® on the headset and on your phone.
  • Start the music player on your phone.
  • All functions **** are controlled on your phone.
  • Your phone controls the master volume.

www.zekler.com

FUNCTION/ACTION HEADSET CONTROL CONFIRMATION AUDIO TONE

Bluetooth® start-up
and Bluetooth® pairing (Bluetooth® off, press 6 sec.)| Press and hold for 3 seconds.
Confirm pairing on your phone.|
Answer/End calls| 1 short press|
Reject calls| Press and hold for 3 seconds.|
Re-dial the last dialed number| 2 short presses|
Voice dial
Activate voice control on your phone.| Press 2 sec. and release.
Confirmation from your phone.|

ZEKLER 412 RDB Hearing Bluetooth Radio Hearing Protection with Batteries -
Fig 4ZEKLER 412 RDB
Hearing Bluetooth Radio Hearing Protection with Batteries - Fig
5ZEKLER 412 RDB
Hearing Bluetooth Radio Hearing Protection with Batteries - Fig
6

G. Approved helmet combinations

Manufacturer Helmet model Adapter S M L
Auboueix Iris 2 30 mm x x x
Bjornklader/Sundstrom Balance HD/SR580 30 mm x x x
Bjornklader Balance AC 30 mm x x x
Casco PF 100 AS S, M, L 30 mm x x x
Centurion Concept 30 mm x x
Cerva Alpin worker 30 mm x x
Irudek Ekain 30 mm x x
Irudek Stilo 300V 30 mm x x
JSP EVO 2 30 mm x x x
JSP EVO 3 30 mm x x x
JSP MK 7 30 mm x x x
JSP Evolite 30 mm x x x
KASK Superplasma 30 mm x x x
KASK Plasma 30 mm x x x
KASK HP 30 mm x x x
LAS Rockman S14 30 mm x x x
LAS Rockman S16 30 mm x x x
LAS Rockman S17 30 mm x x x
Petzl ST 30 mm x x
Petzl VENT 30 mm x x
Petzl BEST 30 mm x x
Petzl Vertex 30 mm x x
Petzl Vertex Vent 30 mm x x
Petzl Strato 30 mm x x
Petzl Strato Vent 30 mm x x
Manufacturer Helmet model Adapter S M L
--- --- --- --- --- ---
Schuberth BER80 30 mm x x x
Schuberth Electrician 80 30 mm x x x
Scott Safety Style 300 30 mm x x x
Scott Safety Style 600 30 mm x x x
Scott Safety HC710 30 mm x x x
Scott Safety HC715 30 mm x x x
Scott Safety HC750 25 mm*1 x x x
Singing Rock Flash Industry 30 mm x x
Singing Rock Flash Aero 30 mm x x
Sundström SR 570 30 mm x x
Singing Rock Flash Access 30 mm x x
Uvex Airwing 30 mm x x x
Uvex Pheos 30 mm x x x
Uvex Pheos Alpine 30 mm x x x
Zekler Zone 30 mm x x
Zekler Zone Electro 30 mm x x
Zero Pinnacle EXO Vent 30 mm x x
Zero Pinnacle EXO Volt 30 mm x x
Zero Pinnacle EXO Volt 2 30 mm x x
Zero Pinnacle Zertec Vent 30 mm x x
3M Peltor G2000 30 mm x x x
3M Peltor G3000 30 mm x x x
3M SecureFit X5000 30 mm x x
3M SecureFit X5500 30 mm x x

*¹ Zekler 61G Art no. 380686550
Certification and Monitoring: PZT GmbH, Bismarckstrasse 264 B, 26389 Wilhelmshaven, Germany
Notified Body: 1974F8, Notified by ZLS

HEADSET AND NOISE ATTENUATING HEARING PROTECTOR

This user manual applies to the following models
Headband-style hearing protection:
Zeller 412 RDB – FM Radio, Level Dependent, Bluetooth®
Zekler 412 DB – Level Dependent, Bluetooth®
Helmet/Cap mounted hearing protection:
Zeller 412 RDBH – FM Radio, Level Dependent, Bluetooth®
Zekler 412 DBH – Level Dependent, Bluetooth®
Hereby, Zeller Safety, declares that the hearing protector Zekler BT is in compliance with the PPE regulation EU 2016/425, the RED Directive 2014/53/EU (Europe), and applicable parts of European standards:

  • EN 352-1 (Headband/Neckband)
  • EN 352-3 (Helmet mount)
  • EN 352-4 (Level dependent)
  • EN 352-6 (External audio input)
  • EN 352-8 (Entertainment – AM/FM radio & Bluetooth®)

The full text of the EU declaration of conformity is available at the following internet address: www.zekler.com/Declaration-of- conformity
For the manufacturing date, see the date clock on the inside of the ear cup. The expected lifetime of the product, excluding its batteries, is 5 years.
Tested to the Radio Equipment Directive (RED) 2014/53/EU (Europe) by Nemko, Notified Body: 0470.
This product is covered by the WEEE Directive (2012/19/EU) (Waste Electrical and Electronic Equipment).
Do not dispose of your product as unsorted municipal waste. The battery must be disposed of in accordance with national regulations. Use a local recycling system for electronic products.
Australian and New Zeeland standard AU/NZS 1270:2002
This device complies with Part 15 of the FCC Rules.
FCC & IC (USA & Canada)
FCC ID: QF9-ZEKLER412
IC ID: 5808A-ZEKLER412
CAN ICES-3 (B)/NMB-3(B)
Operation is subject to the following conditions
(1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
Eurofins Product Service GmbH, Storkower Str. 38 C, 15526 Reichenwalde, Germany
This headset is designed for Bluetooth® standard 4.1 (Headset, Handsfree, and A2DP profiles)
BT4.1 Standard (no smart/BLE-support)
A2DP 1.3
HSP 1.2
HFP 1.5
This hearing protector is intended to protect the wearer from hazardous noise levels when fitted in accordance with these user instructions. Any other uses are not intended and therefore not allowed.
Functions and user instructions vary between models. Follow the instructions that apply to your model.
The headset combines the functions of AM/FM Radio, level-dependent “active listening” and wireless communication via mobile phone (or other units) and music streaming from (MP3-players, mobile phones, PCs, etc.) units that are compatible with Bluetooth® and A2DP (Advanced Audio Distribution Profile). The headset’s noise-suppressed boom microphone provides clear communication even at high noise levels.
Carefully read these user instructions to attain the greatest possible benefits from your Zeller product.

  • To achieve optimal comfort and the best effect from this hearing protector, you must use, maintain and adjust the protector according to the following instructions.
  • The use of perspiration/hygienic protection over the sealing rings can reduce the hearing protector’s noise attenuation properties.
  • This product may be adversely affected by certain chemical substances. Further information should be sought from the manufacturer.
  • The hearing protector’s noise attenuating properties can dramatically decrease with the usage of, for example, thick eyeglass frames, ski masks/balaclavas, etc. Brush away all hair from the ears and place the earmuffs over the ears so that they fit comfortably and snugly. Ensure that the ears are completely enclosed by the earmuffs and that you have even pressure around the ears.
  • Immediately discard the product if showing signs of cracks or damage.
  • The audibility of warning signals at a specific workplace may be impaired if over-protected when using a hearing protector with a too high noise attenuation performance in relation to the noise environment.
  • When using hearing protection with entertainment audio features, remember to adjust the volume when working in noisy environments so that any warning signals, etc. can be heard.
  • For some individuals, excessive sound pressure from earphones and headphones may cause hearing loss.
  • Do not use this product in a potentially explosive atmosphere.
  • Ensure that the hearing protectors are regularly inspected for serviceability.
  • This hearing protector is provided with level-dependent attenuation. The wearer should check the correct operation before use. If distortion or failure is detected, the wearer should refer to the manufacturer’s advice for maintenance and replacement of the battery.
  • Warning! Performance may deteriorate with battery usage. The typical period of continuous use that can be expected from the hearing protector is 62/56 hours
  • Warning! The output of the level-dependent circuit of this hearing protector may exceed the external sound level.

Headband (pic. C)

  • Adjust the protector to its largest size and put it on your head.
  • Adjust the band so that the protector rests lightly against the crown of your head.

Helmet/Cap mount (pic. D)

  • Push the helmet mount into the helmet’s slot attachment until it snaps into place.
  • Place the earmuffs over the ears and press inwards until you hear a click. Adjust the earmuffs so that the helmet fits comfortably on your head.

Care
Clean with mild soap. You must be sure that the detergent you use does not irritate the skin. The hearing protector must be stored dry and clean, e.g. in its original packaging. Do not dip the product in the water!
When damp, turn the shells outwards and remove the cushions so they can dry. Remove the batteries.
Warning!
If the instructions above are not followed, the noise attenuation could drastically decrease.
The hearing protector must always be used in noisy environments to provide a full protection effect!
Only 100% wear time provides full protection.
Information required by E.P.A. (US)
The level of noise entering a person’s ear, when a hearing protector is worn as directed, is closely approximated by the difference between the A-weighted environmental noise level and the NRR.
Example:

  1. The environmental noise level as measured at the ear is 92 dBA.
  2. The NRR is 25 decibels (dB).
  3. The level of noise entering the ear is approximately equal to 67 dB.

Caution
For noise environments dominated by frequencies below 500 Hz, the C-weighted environmental noise level shall be used.
Warning
Improper fit of this device will reduce its effectiveness in attenuating noise. Although hearing protectors can be recommended for protection against the harmful effects of impulsive noise, the noise reduction rating (NRR) is based on the attenuation of continuous noise and may not be an accurate indicator of the protection attainable against impulsive noise such as gunfire.

**USER INSTRUCTIONS FOR AM/FM RADIO, LEVEL DEPENDENT & EXT. AUDIO INPUT

**AM/FM Radio

The hearing protector features level-limiting of audio signals from the speakers to a maximum of 82 dB(A) at the ear. Remember to adjust the volume when working in noisy environments so that any warning signals etc. can be heard.
On/Off Volume Radio
Turn the dial (A:10) to switch on the radio. Continue turning clockwise to increase the volume.
In the event of poor reception conditions, the radio automatically switches from stereo to mono mode to maintain optimal audio quality.
Frequency/channel selector
Turn the dial (A:11) to choose radio stations. The radio’s frequency range is FM 88-108 MHz, AM 540-1700 KHz (A:11b).
Level Dependent “Active listening”
The hearing protector is equipped with Level Dependent “Active listening”. If interference or faults occur, consult the manufacturer’s instructions on maintenance and battery replacement.
Warning! The sound from the Level Dependent “Active listening” on the hearing protector can exceed the external noise level.
On/Off Volume Level Dependent function
Turn the dial (A:12) to turn on the active listening microphones. Continue to turn clockwise to increase the volume. Check that the function is operable before using the unit in a noisy environment.
Level Dependent + Radio (A:12, A:10)
Both functions have individual volume control. Adjust the volume to the desired level.
External audio input (A:13)
The hearing protector is equipped with an electronic audio input. You can connect a com-radio or other external audio source to the 3.5 mm audio input via the included connection cable (B:6). Check that the function is operable before using the unit. If interference or faults occur, consult the manufacturer.
Warning! The connection of an external audio source can entail a sound level that exceeds the daily permitted exposure level.
NOTE! The volume function (A:12 or A:10) must be turned on when using the external audio input.

USER INSTRUCTIONS FOR BLUETOOTH® FUNCTIONS

You also need access to the user instruction for the Bluetooth® compatible unit (mobile phone etc.) communicating with the headset. The hearing protector features level-limiting of audio signals from the speakers to a maximum of 82 dB(A) at the ear.
Pairing with another Bluetooth® unit
Pairing establishes a wireless link for communication between the units. Pairing is only needed once for each pair of units. The headsets can store up to 8 different units in their memory.

  1. Start the headset Bluetooth® function by pressing and holding down the Bluetooth® knob (A:14) (from here on referred to as the BT knob) for 3 seconds. An audio signal with 4 ascending tones is heard in the headset. The headset LED light (A:15) flashes red/blue to confirm pairing mode. Release the BT knob.
  2. Start the Bluetooth® function on your phone (or another unit) and search for and connect to the new unit. See the user instruction for your phone (or another unit). Zeller 412 is shown on the phone’s display. If the phone requires a PIN code, enter four zeros (0000).
  3. An audio signal with 1 tone is heard in the headset when the link is established and ready for communication. The headset LED flashes blue.
  4. If the pairing fails, switch off all headset functions and restart again from step 1.

The headset boom microphone (A:7) should be placed approximately 1 cm from the mouth for best noise suppression and clear speech intelligibility. Make sure the microphone is facing the mouth (A:7b).
When Bluetooth® pairing has been activated, the link is automatically established with the headset the next time the hearing protection is switched on. The connection link is confirmed with an audio signal in the headset and the LED flashes blue.
Turning off the Bluetooth® function
Press and hold the BT knob for 6 seconds. An audio signal with 4 descending tones is heard in the headset confirming the Bluetooth® function is turned off.
Answer/End/Refuse call
Most phones send their own call signal to the headset. If not, 4 shifting tones are heard in the headset at incoming calls.

  1. Answer a call by pressing short on the BT knob. 2 ascending tones confirm that the call is connected
  2. End a call by pressing short on the BT knob. 1 short tone confirms that the call is disconnected.
  3. To refuse a call, press and hold the BT knob for 3 seconds. 2 descending tones confirm the call is refused.

Redial last dialed number
2 short presses on the BT knob redial the last dialed number.
Voice dial from headset via a connected phone
See the user instruction for your phone if it supports voice dial.

  1. Press and hold the BT knob for 2 seconds and release the BT knob.
  2. Speak your voice dial command.

Most phones that support voice-controlled dialing will send an acknowledgment signal when to speak your voice dial command.
Transferring calls to/from a phone

  1. Press the BT knob for 1 second to transfer the call to the phone. A short tone will confirm the call is transferred to the phone.
  2. Press the BT knob for 1 second to transfer the call back to the headset.

Park a call/put on hold
During an ongoing call, an additional incoming call can be connected. See the user instruction for your phone if this is supported.

  1. A short press on the BT knob will connect the incoming call and end the ongoing call. A short tone is heard in the headset to confirm.
  2. Two short presses on the BT knob will connect the incoming call and put the ongoing call on hold. A short tone is heard in the headset to confirm.
  3. One short press on the BT knob re-connects the parked call and ends the other. A short tone is heard in the headset to confirm.

Adjusting the volume during an ongoing call

  1. Increase the volume by turning the BT knob clockwise.
  2. Decrease the volume by turning the BT knob counterclockwise.

The headset has the function of “adaptive volume control” which adjusts the incoming communication/speech volume to the ambient sound level. This means that the users themselves do not need to adjust the volume when working in irregular ambient sound levels. The volume adjusts relative to the originally set volume level.
Music streaming from a Bluetooth® unit

  1. Start the headset Bluetooth® function (see earlier steps).
  2. Start the music player on the phone (or another unit).
  3. Adjust the volume by turning the BT knob clockwise/counterclockwise.
  4. Play/Pause the music by pressing short on the BT knob
  5. Other playback functions are controlled on the phone.

Warning!
Remember to adjust the volume when working in noisy environments so that any warning signals etc. can be heard.
Indication of broken Bluetooth® link
If the Bluetooth® link is broken due to exceeded range (more than10 meters) two tones will be heard in the headset.
NOTE! The unit will not automatically connect when within range. Press the BT knob when within range (less than 10 meters) to re-establish the link. A tone will be heard in the headset to confirm.
IMPORTANT!
Due to safety reasons, the volume of the AM/FM radio and music streaming is muted at an incoming call or other communication from the connected unit.
The volume is reset automatically when the communication is ended.
Due to safety reasons, the volume of the Level Dependent function and external sound input is NOT muted at incoming calls or other communication from the connected unit (if these functions are in use).
Excessive sound pressure from earphones and headphones may cause hearing loss.
Some phones may not have access to all Bluetooth® functions. In that case, these functions have to be controlled directly on the phone.
The headset has the function “side-tone” which allows users to hear their own voice in the headset.
This improves communication in noisy environments and lets users talk at a normal speech level.

Low battery warning
When the battery power is decreasing and approximately 5 % remains of maximum run time, an audio signal of 5 shifting tones will be heard in the headset. The batteries should then be changed or charged as soon as possible. The LED light flashes purple once and the headset will turn off when the batteries are completely drained.
Power save function
To avoid unintentional drainage of the batteries, e.g. if the headset is left on after working hours, the headset will automatically be turned off after 6 hours if no settings have been made within the 6-hour period.
Press and hold the BT knob for 3 seconds to restart the Bluetooth® function and resume the connection.
If the AM/FM radio or Level Dependent function was turned on, each individual volume control (A:12, A:10) must be turned off and then on again.
Exchange the batteries
The headset can run on both rechargeable and disposable batteries of AA type (LR6/HR6). Make sure you only use specified battery types. Warning! If other battery types than specified are used, the risk of explosion may occur. Dispose of used batteries according to local regulations.
Unscrew the battery lid. (A:16). Check that the batteries + and – poles are placed correctly in the battery compartment.
Never connect a charger to the headset if disposable batteries are used.
Charging of batteries
Prior to charging, make sure all functions are switched off.
The headset will charge when connected to a USB socket (PC, car, etc.) or when using a USB wall charger, i.e. your mobile phone charger. Use the USB cable supplied with the headset. (B:4)
Only use a charger that is approved to local directives for electronic devices. Charger specifications: Output DC5V⎓1000mA
Check that the charger is correctly connected to the headset charging socket (A:18) and the power source and make sure specified batteries are used and placed with the + and – poles correctly in the battery compartment.
When charging, the headset LED light will flash red.
Use only by the manufacturer specified and approved charger.
When the batteries are charged the LED will light up solid red. A full charge will take approximately 3 hours (longer if charged from a USB socket).
Important! Do not use the headset when the batteries are charging!
The battery run time is approximate:
Bluetooth® streaming and Level Dependent: 62 hours
AM/FM radio and Level Dependent: 56 hours
The operation time may vary depending on the environment, temperature, and battery.
Recommendations for the maximum lifespan of rechargeable batteries

  • New rechargeable batteries should be fully charged before first use.
  • Remove batteries if not in use for a long period.

Components (pic. A)

A:1. Headband of thermoplastic
A:2. Stirrup attachment with firm and easy size adjustment
A:3. Replaceable foam-filled ear cushions
A:4. FM radio aerial with excellent reception sensitivity
A:5. Level Dependent “Active Listening” microphones
A:6. Connection cable between the left and right ear cups
A:7. Noise suppressed boom microphone
A:8. Replaceable foam-filled head cushion
A:9. Helmet/Cap attachment of thermoplastic, 30 mm standard| A:10. On/Off- Volume knob for AM/FM radio
A:11. Knob for radio station selection
A:11b. AM/FM switch
A:12. On/Off-Volume knob for Level Dependent function
A:13. 3,5 mm input for connection to external sound sources
A:14. Bluetooth® multi-function knob
A:15. Bluetooth® LED light
A:16. Battery lid (easy to open without using tools)
A:17. Socket for a boom microphone
A:18. Charging socket
---|---

Accessories and spare parts

B:1. Hygiene kit HK3B: 380684118
B:2. Sweat absorbers CR1: 380684035
B:3. Windshield boom microphone: 380684084
B:4. Battery charger: 380684050, 380684100
B:5. Rechargeable AA batteries: 380684068| B:6. 3,5 mm stereo connection cable: 380684043
B:7. Boom microphone: 380684076
B:8. Windshield level dependent microphones: 380684092
B:9. Spare Headband: 380684120
B:10. Spare Helmet Arm (pair): 380684123
---|---

Change of hygiene kit (pic. E)

  1. Remove the old sound absorber foam and insert the new
  2. Pull off the old ear cushion
  3. Center the new ear cushion over the hole
  4. Press with a finger along the outside of the ear cushion until it attaches all around the edges
  5. (only for headband models) Pull off the old head cushion and insert the new

Important!
Earmuffs, and in particular cushions, may deteriorate with use and should be examined at frequent intervals for cracking and leakage.
The hygiene kit should be changed at least twice per year. Make sure you choose the correct hygiene kit for your hearing protector. (B:1)
Approval and technical data (see table F)

F:1) Headband
F:2) Helmet mount
F:3) Tested and certified to (standards)
F:4) Weight
F:5) Mean attenuation| F:6) Standard deviation
F:7) Assumed Protection Value
F:8) Tested and certified by (notified body)
F:9) Electrical input level (3,5 mm AUX)
F:10) Size
---|---

Approved helmet combinations
These earmuffs should be fitted to and used only with the industrial safety helmets listed in table G.

  • G:1) Manufacturer
  • G:2) Model
  • G:3) Adapter

Earmuffs complying with EN 352-3 are of medium size range or small size range or large size range. Medium-size range earmuffs will fit the majority of wearers. Small size range or large size range earmuffs are designed to fit wearers for whom medium size range earmuffs are not suitable.

FCC Compliance Statement

Changes or modifications to the equipment not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment.
NOTE: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules.
These limits are designed to provide reasonable protection against harmful interference in a residential installation.
This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications.
However, there is no guarantee that interference will not occur in a particular installation.
If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

  • Reorient or relocate the receiving antenna.
  • Increase the separation between the equipment and receiver.
  • Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
  • Consult the dealer or an experienced radio/TV technician for help.

This portable device with its antenna is exempt from FCC/IC RF exposure limits for the general population/uncontrolled exposure due to low output power.
The antenna used for this device must not be co-located or operating in conjunction with any other antenna or transmitter.
Canada Compliance Statement
CAN ICES-3 (B)/NMB-3(B)
This device contains license-exempt transmitter(s)/receiver(s) that comply with Innovation, Science, and Economic Development Canada’s license-exempt RSS(s). Operation is subject to the following two conditions:

  1. This device may not cause interference.
  2. This device must accept any interference, including interference that may cause undesired operation of the device.

Zekler Safety
SE-523 85 Ulricehamn
Sweden
www.zekler.com
21/06 Print no: 17288_rev12

Documents / Resources

| ZEKLER 412 RDB Hearing Bluetooth Radio Hearing Protection with Batteries [pdf] User Manual
412 RDB, 412 RDBH, 412 DB, 412 DBH, 412 RDB Hearing Bluetooth Radio Hearing Protection with Batteries, 412 RDB, Hearing Bluetooth Radio Hearing Protection with Batteries, Hearing Protection with Batteries
---|---
| ZEKLER 412 RDB Hearing Bluetooth Radio Hearing Protection [pdf] User Manual
412 RDB, 412 RDBH, 412 DB, 412 DBH, 412 RDB Hearing Bluetooth Radio Hearing Protection, 412 RDB, Hearing Bluetooth Radio Hearing Protection, Bluetooth Radio Hearing Protection, Radio Hearing Protection, Hearing Protection

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