E C Technologies N9 Bluetooth Headset User Guide
- June 4, 2024
- E C Technologies
Table of Contents
E C Technologies N9 Bluetooth Headset
Main Parts
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N 8 N 9
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USB charging cable
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Short press multi-function button, play/pause music.
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Short press button, increase/decrease volume,
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Long press button for more than 2 seconds to play the next/previous
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When a call come in during playing, short press the multi-function button ,pause music and answer the call. Press the multi-function button again, hang up the call and the music
continues to play.
Call Mode
- Short press multi-function button to answer/hang up the call.
- Double-click multi-function button to call back the last call.
- Press and hold multi-function button for 2 seconds to reject the call
When red-blue light flash alternately, device is able to be searched and connected with.
Warning
- To reduce the risk of electric shock, please do not disassemble.
- Do not place the device in a confined space, such as a bookcase or closet.
- Do not overheat the battery (installed l:lattery pack or battery), such as prolonged exposure to sunlight, fire or similar conditions.
Notice
Do not change the transmitting frequency without authorization, increase the transmission power(including the addition of an RF power amplifier), and do not arbitrarily use an external antenna or switch to another transmitting antenna; When used, it shall not cause harmful interference to various legitimate radio services. Once any interference is found, it shall be immediately stopped and measures shall be taken to eliminate the interference before continuing to use it The use of micro-power radio equipment must tolerate interference from various radio services irradiation interference from industrial, scientific and medical applications
How to turn on/off wireless communication?
Turning the unit’s power on/off also turns on/off wireless communication at
the same time.
Use details
About BLUETOOTH Communications
- The operating range of BLUETOOTH wireless technology is within about 10M. Depending on the obstacle (human body , metal ,wall, etc. ) electromagnetic environment the maximum communication range may change .
- The built-in antenna shown as dashed line. Turning_ the direction of the internal antenna to the connected BLUETOOTH device can improve the sensitivity of the
- BLUETOOTH communication. When there is an obstacle between the antenna of the connected device and the built-in antenna of the unit, noise or audio signal loss may occur, or communication may be interrupted.
- Under the following conditions, BLUETOOTH communication may be interrupted, or noise or loss of audio signal may occur. There are obstacles such as metal or walls between this unit and the BLUETOOTH device. Placing the BLUETOOTH device toward the antenna of this unit can improve this situation Devices like WI-FI, wireless phone, microwave oven near the unit using the 2.4 GHz frequency.
- Because BLUETOOTH device and WI-FI (IEEE802.11b/g/n) use the same frequency (2.4GHZ)If you use this unit near a WIFI device, microwave interference may occur, resulting in the loss of noise or audio signals, or communication interruptions. In this case, do the following. Use this unit at least 10m away from WI-FI equipment. If the unit is within 10m of a WI-FI device, turn off the WI-FI device Mount the unit and the BLUETOOTH device as close to each other as possible.
- Due to the characteristics of BLUETOOTH wireless technology, the sound played on this unit will be slightly later than the sound played on the BLUETOOTH device during a telephone call or listening to music.
- Microwaves emitted from BLUETOOTH devices may affect the operation of electronic medical devices. In the following places, please turn off the unit and other BLUETOOTH devices, or it may cause an accident: In the presence of flammable gas, within the hospital or gas station near automatic or fire alarm bells.
- Do not use this unit on an airplane. Radio waves can cause the instrument to malfunction and cause accidents.
- We are not responsible for any information leakage that occurs during BLUETOOTH communications.
- This may be improved by changing the wireless playback quality setting or fixing the wireless broadcast mode to SBC on the transmitting device. For details, refer to the instruction manual near the transmitting device.
About Charging
- Only use USB to charge the unit. Need to use a personal computer with USB port for charging
- Do not turn on the unit or use the BLUETOOTH function during charging
- If you do not use the unit for an extended period of time, the rechargeable battery may not be able to maintain sufficient charge, After repeated charge and discharge Several times, the battery Will be able to maintain proper power
- If the unit is stored for a long time, the battery should be charged once every Six months to prevent excessive discharge.
Static precautions
- Accumulation of static electricity in the body may cause slight stinging in the ears. Wearing clothes made of natural materials can minimize the impact.
Other
- When connecting/disconnecting headphones (sold separately), turn off the device.
- Do not place the unit in a place where it is wet, full of dust, fumes or steam and exposed to direct sunlight.
- Do not leave the unit in the car for a long time. Otherwise it may cause a malfunction.
- Depending on the radio wave conditions and the location of the device, the BLUETOOTH device may not work on mobile phones.
- Listening at high volume using this unit may affect your hearing.
- For traffic safety, do not use this unit while driving or riding .
- At the intersection of railways, do not use this unit if the platform and construction site cannot hear the surrounding sounds in a dangerous place.
- Do not place heavy objects or put pressure on the unit, as this may cause the unit to deform during long-term storage.
- Do not subject the unit to excessive shocks.
- Use a soft, dry cloth to clean the device.
- If you arrive at discomfort after using this unit, stop using the unit immediately.
FCC Caution
This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions:
- This device may not cause harmful interference, and
- This device must accept any interference received, including interference that may cause undesired operation.
Any Changes or modifications 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.
The device has been evaluated to meet general RF exposure requirement. The device can be used in portable exposure condition without restriction.