audio-technica ATH-CKR300BT Wireless In-Ear Headphones User Manual

audio-technica ATH-CKR300BT Wireless In-Ear Headphones

Introduction

Thank you for purchasing this Audio-Technica product.
Before using the product, please read through the Quick Start Guide and Caution Guide, as well as this user manual when necessary, to ensure that you use the product correctly.

Safety precautions

Although this product was designed to be used safely, failing to use it correctly may result in an accident. To ensure safety, observe all warnings and cautions while using the product.

Cautions for the product

• Do not use the product near medical equipment. Radio waves may affect cardiac pacemakers and medical electronic equipment. Do not use the product inside medical facilities.
• When using the product in aircraft, follow airline instructions.
• Do not use the product near automatic control devices such as automatic doors and fire alarms. Radio waves may affect electronic equipment and cause accidents due to malfunction.
• Do not disassemble, modify or attempt to repair the product to avoid electric shock, malfunction or fire.
• Do not subject the product to strong impact to avoid electric shock, malfunction or fire.
• Do not handle the product with wet hands to avoid electric shock or injury.
• Disconnect the product from a device if the product begins to malfunction, producing smoke, odor, heat, unwanted noise or showing other signs of damage. In such a case, contact your local Audio-Technica dealer.
• Do not allow the product to get wet to avoid electric shock or malfunction.
• Do not put foreign matter such as combustible materials, metal, or liquid in the product.
• Do not cover the product with a cloth to avoid fire or injury by overheating.
• Follow applicable laws regarding mobile phone and headphone use if using headphones while driving.
• Do not use the product in places where the inability to hear ambient sound presents a serious risk (such as at railroad crossings, train stations, and construction sites).
• The product effectively shields external sound, so you may not hear sound around you clearly while wearing the product. Adjust the volume to a level where you can still hear background sound and monitor the area around you while listening to music.
• Store the eartips out of the reach of small children.
• When charging, make sure to use the included USB charging cable.
• Do not charge with devices that have quick-charge functionality (with a voltage of 5 V or more). Doing so may cause the product to malfunction.
• To prevent damage to your hearing, do not raise the volume too high. Listening to loud sound for an extended period may cause temporary or permanent hearing loss.
• Discontinue use if skin irritation results from direct contact with the product.
• If you begin to feel unwell while using the product, discontinue use immediately.
• When removing the product from your ears, check to make sure the eartips are still attached to the main unit. If the eartips become lodged in your ears and you are unable to remove them, consult a physician at once.
• If you develop an itch from wearing the product, discontinue use.

Safety precautions

Cautions for rechargeable battery

The product is equipped with a rechargeable battery (lithium polymer battery).

• If battery fluid gets into eyes, do not rub them. Rinse thoroughly with clean water such as tap water and consult a doctor immediately.
• If battery fluid leaks, do not touch fluid with bare hands. If fluid remains inside the product, it may cause malfunction. If battery fluid leaks, contact your local Audio-Technica dealer.
  • If fluid gets in your mouth, gargle thoroughly with clean water such as tap water and consult a doctor immediately.
  • If your skin or clothing comes in contact with fluid, immediately wash the affected skin or clothing with water. If you experience skin irritation, consult a doctor.
• To avoid leakage, generation of heat or explosion:
  • Never heat, disassemble or modify the battery, nor dispose of it in a fire.
  • Do not attempt to pierce with a nail, hit with a hammer or step on the battery.
  • Do not drop the product or subject it to strong impact.
  • Do not get the battery wet.
• Do not use, leave or store the battery in the following places:
  • Area exposed to direct sunlight or high temperatures and humidity
  • Inside of a car under the blazing sun
  • Near heat sources such as heat registers
• Charge only with the included USB cable to avoid malfunction or fire.
• The internal rechargeable battery of this product cannot be replaced by the user. The battery may have reached the end of its service life if the usage time becomes significantly shorter even after the battery has been fully charged. If this is the case, the battery needs to be repaired. Contact your local Audio-Technica dealer for repair details.
• When the product is disposed of, the built-in rechargeable battery needs to be discarded properly. Contact your local Audio-Technica dealer to learn how to properly dispose of the battery

For customers in the USA

FCC Notice

Warning

This device complies with Part 15 of the FCC Rules.
Operation is subject to the following two 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.

Caution

You are cautioned that any changes or modifications not expressly approved in this manual could void your authority to operate this 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 to 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

RF Exposure Statement

This transmitter must not be co-located or operated in conjunction with any other antenna or transmitter used in other systems. This device complies with FCC radiation exposure limits set forth for an uncontrolled environment and meets the FCC radio frequency (RF) Exposure Guidelines. This equipment has very low levels of RF energy that is deemed to comply without testing of specific absorption rate (SAR).

For customers in Canada

IC statement

CAN ICES-3 (B)/NMB-3(B)
This device complies with INDUSTRY CANADA R.S.S. 247. 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 which may cause undesired operation. Under Industry Canada regulations, this radio transmitter may only operate using an antenna of a type and maximum (or lesser) gain approved for the transmitter by Industry Canada. To reduce potential radio interference to other users, the antenna type and its gain should be so chosen that the equivalent isotropically radiated power (e.i.r.p.) is not more than that necessary for successful communication. This device complies with RSS-102 radiation exposure limits set forth for an uncontrolled environment.

Notes on use

• Be sure to read the connected device’s user manual before use.
• Audio-Technica will not be liable in any way for any loss of data in the unlikely event that such losses should occur while using the product.
• On public transportation or in other public places, keep the volume low so as not to disturb other people.
• Minimize the volume on your device before connecting the product.
• When using the product in a dry environment, you may feel a tingling sensation in your ears. This is caused by static electricity accumulated on your body, not by product malfunction.
• Do not subject the product to strong impact.
• Do not store the product in direct sunlight, near heating devices, or in hot, humid, or dusty places. Additionally, do not allow the product to get wet.
• When the product is used for a long time, the product may become discolored due to ultraviolet light (especially direct sunlight) and wear.
• If the product is placed in a bag while the USB charging cable is still connected, the USB charging cable may become caught, severed, or broken.
• Make sure to hold the plug when connecting and disconnecting the USB charging cable. The USB charging cable may become severed or an accident may occur if you pull on the cable itself.
• When you are not using the USB charging cable, disconnect it from the product.
• When you are not using the product, store it in the included pouch.
• This product can be used to talk on the phone only when using a mobile telephone network. Support for telephony apps that use a mobile data network is not guaranteed.
• If you use the product near an electronic device or transmitter (such as a mobile phone) which is not connected with the product, unwanted noise may be heard. In this case, move the product away from the electronic device or transmitter.
• If you use the product near a TV or radio antenna, noise may be seen or heard in the television or radio signal. In this case, move the product away from the TV or radio antenna.
• To protect the built-in rechargeable battery, charge it at least once every 6 months. If too much time passes between charges, the life of the rechargeable battery may be reduced, or the rechargeable battery may no longer be able to be charged.
• Charge the product in a well-ventilated place (10 to 35 °C) away from direct sunlight. Otherwise, the battery may deteriorate, possibly resulting in shorter periods of continuous use or may fail to charge.

About water-resistant (drip-proof) performance

• The water-resistant (drip-proof) performance is designed to protect the headphones if they get wet from rain, etc. (equivalent to IPX2). JIS/IEC protection grade IPX2 means that the headphones are protected against water droplets falling from above at a 15 degree angle. The headphones cannot be used in hot and humid places, such as bathrooms.
• Although the product has water-resistant (drip-proof) capabilities equivalent to IPX2, the part where the sound comes from is not water-resistant (drip-proof).
• Make sure to close the USB cap completely when using the product to maintain water-resistant (drip-proof). If the USB cap is not closed completely, water may enter inside.
• The headphones are not waterproof. Submerging them in water may cause damage.

For a more comfortable Bluetooth® communication experience

The effective communication range of this product varies depending on obstructions and radio wave conditions. For a more enjoyable experience, please use the product as close as possible to the Bluetooth device. To minimize noise and sound disruptions, avoid placing your body or other obstacles between the product’s antenna and the Bluetooth device.

Part names and functions

• USB charging cable (30 cm (12”), USB Type-A/USB Type-CTM)
  

• Eartips* (XS, S, M, L)

• Pouch

Charging the battery

• Fully charge the battery when using for the first time.

• When the rechargeable battery is running low, the product will emit a low battery level warning sound through the
  headphones, and the indicator lamp will flash in red. In this case, charge the battery.

• It takes about 2 hours maximum to charge the battery fully. (This time may vary depending on usage conditions.)

• Charge the product in a well-ventilated place (10 to 35 °C) away from direct sunlight. Otherwise, the battery may deteriorate, possibly resulting in shorter periods of continuous use or failure to charge.

1. Open the battery jack cover.

2. Connect the included USB charging cable (USB Type-C side) to the battery jack.

   • The included USB charging cable is designed for exclusive use with the product. Do not use any other USB
     charging cable.

   • When inserting the USB charging cable into the USB port or battery jack, insert it straight (horizontally).
     

3. Connect the included USB charging cable (USB Type-A side) to the computer to start charging.

   • While charging, the indicator lamp lights as follows (it may take several seconds for the indicator lamp to light).
     Lit in red : Charging Off : Charging complete
     Flashing in red : Charging error (Charge the product in a well-ventilated place (10 to 35 °C) away from direct sunlight.

4. When charging is complete, disconnect the USB charging cable (USB Type-A side) from the computer.

5. Disconnect the USB charging cable (USB Type-C side) from the battery jack and close the cover firmly

• If you start to charge while the product is on, it will turn off while charging.
• When charging, make sure to use the included USB charging cable. The product may not charge with cables other than the included USB charging cable.

Connecting via Bluetooth wireless technology

To connect the product to a Bluetooth device, the product needs to pair (register) with the device.

Pairing a Bluetooth device

• Read the user manual for the Bluetooth device.
• Place the Bluetooth device within 1 m (3.3′) of the product to perform pairing correctly.
• To confirm the progress of the pairing process, wear the product while performing this procedure and listen for the
  confirmation tone.

1. Starting with the product turned off, slide the power switch to the “ON” position.
   • The indicator lamp will light in white, and then flash in white.
2. Use your Bluetooth device to begin the pairing process and search for the product. When your Bluetooth device finds the product, “ATH-CKR300BT” will be displayed on the device.
   • For information about using your Bluetooth device, refer to the device’s user manual.
3. Select “ATH-CKR300BT” to pair the product and your Bluetooth device.
   • Some devices may ask for a passkey. In this case, enter “0000”. The passkey may also be called a passcode, PIN code, PIN number, or password.
   • The product sounds a confirmation tone when pairing is complete.
     

About pairing

When connecting a new Bluetooth device, you need to pair it with the product. Once the Bluetooth device and the product are paired, you do not need to pair them again. The product supports multipairing, in which a connection history is saved. However, in the following cases you will need to pair again even if the Bluetooth device was paired once:

• If the product is deleted from the Bluetooth device’s connection history.
• If the product is sent out for repair.
• When switching to a Bluetooth device, you may not be able to pair because the previously connected Bluetooth device cannot be disconnected. In such cases, press and hold (about 6 seconds) the volume buttons (+/-). The product will switch to the “searching for devices” state and you will be able to pair with your desired Bluetooth device.
  

About multipoint

The product supports multipoint, which allows two Bluetooth devices to be connected at the same time. While you are listening to music with one device, you can answer a call that comes in from the other device. It is convenient if you have two smartphones, for example.

• Audio-Technica does not guarantee the operation of all combinations of Bluetooth devices

Connecting using multipoint

1. Pair with the first Bluetooth device.
2. After pairing with the first device, turn off its Bluetooth feature.
3. Pair with the second Bluetooth device.
4. Turn on the Bluetooth feature of the first Bluetooth device

• If the product does not connect, restart its power.
• Up to two Bluetooth devices can be connected at the same time with multipoint. To connect a third Bluetooth device, disconnect one of the connected devices

Using the product

The product can use Bluetooth wireless technology to connect to your device and play music, receive phone calls, etc.
Use the product for whichever of these purposes suits your needs.
Note that Audio-Technica cannot guarantee the operation of displays, such as the battery level display, or applications via Bluetooth devices.

product](https://manuals.plus/wp-content/uploads/2023/10/audio-technica-ATH- CKR300BT-Wireless-In-Ear-Headphones-User-Manual-10.png)| Lights in white, then flashes in white23
OFF1| Lights in white, then turns off3

1. If you are wearing the product, you will hear a beep to indicate when the product has turned on and off.
2. It may take several seconds for the indicator lamp to light.
3. For details, refer to “Indicator lamp display” (p.12).

Wearing the product

Insert the side of the product marked “L” (LEFT) into the left ear and the side marked “R” (RIGHT) into the right ear, and then adjust the eartips.

Listening to music

• To connect for the first time, pair the product and your device via Bluetooth wireless technology. If you have already paired the product and your Bluetooth device, turn on the Bluetooth device’s Bluetooth connection before turning on the product.
• Use your Bluetooth device to start playback, referring to the device’s user manual as necessary

Power supply/Control button

Press (twice)

| Depending on the connected device, activates the device’s speech recognition function (such as Siri for compatible iOS devices).

1. Some controls may not be available for music playback on some smartphones.
2. A beep is heard when the volume is at the maximum or minimum level.

• The volume control of some devices may not work well with the product.

Talking on the phone

• If your Bluetooth device supports telephone features, you can use the product to talk on the phone.
• When your Bluetooth device receives a phone call, the product sounds a ring tone.
• If a call is received while you are listening to music, music playback is paused. When you finish the call, music
  playback resumes. *1

call.
Talking on a call| Press the power supply/control button.| Ends the call.
Press and hold the power supply/control button (about 2 seconds). *2| Each time you press and hold the button (about 2 seconds), you switch the call to your mobile phone or

to the product. *2

Press a volume button (+ or -).| Adjusts the volume (+ or -) of the call.

1. Depending on your Bluetooth device, music playback may not resume.
2. When you hear a confirmation tone, release the power supply/control button.

• The phone call controls explained above may not be available on some smartphones

Auto power off function

The product automatically turns off after 5 minutes of not being connected to a device. The product also automatically turns off after 30 minutes in the “Waiting to be connected” status.

Reset function

If the product does not work or other malfunctions occur, refer to “Charging the battery” (p.6) for information on inserting the USB charging cable to provide power, and then do a reset.
Disconnecting and then reconnecting the USB charging cable will reset the product and should resolve any problem you are experiencing. If the problem persists, contact your local Audio Technica dealer. Resetting does not change any of your settings (pairing information, volume setting, etc.).

Indicator lamp display

The indicator lamp of the product indicates the product’s status as explained below.

/wp-content/uploads/2023/10/audio-technica-ATH-CKR300BT-Wireless-In-Ear- Headphones-User-Manual-14.png)| Flashing

: Gradually lights up)

Connection| Waiting to be connected| | Flashing in 8-second intervals
Connecting| | Flashing in 4-second intervals
Battery level| Battery level low| | Flashing 3  times in 4 minute intervals
Charge| Charging| | Lit
Fully charged| | Off
Charging error| | Flashing

Voice guidance

The product plays English voice guidance in the following situations.

Cleaning

Get into the habit of regularly cleaning the product to ensure that it will last for a long time. Do not use alcohol, paint thinners, or other solvents for cleaning purposes.

• To clean, wipe with a dry cloth.

• Immediately wipe off any moisture such as sweat from operating areas such as the buttons. Failure to do so may result in a malfunction due to corrosion.

• Natural oils from the skin are particularly likely to build up on the eartip attachment parts (see figure at right). If these areas are not cleaned, the eartips can become detached. Clean them regularly. Do not touch the areas where sound is produced as they are delicate. Doing so may result in malfunction.

• Wipe away any perspiration or dirt from the cable with a dry cloth immediately after use. Failure to clean the cable may cause it to deteriorate and harden over time, resulting in malfunction.

• Wipe the cable’s USB plug with a dry cloth if dirty.

• Clean the eartips by removing them from the headphones and manually cleaning them with a diluted mild detergent. After cleaning, dry before using again.
  

• If the product will not be used for an extended period of time, store it in a well-ventilated place free from high temperatures and humidity

Eartips

Eartip size

The product includes silicone eartips in 4 sizes (XS, S, M, and L). At the time of purchase, the M-size silicone eartips are attached.
To ensure the best sound quality, select the eartip size that is best suited for you, and adjust the eartips inside your ears for a snug fit. It may be difficult to hear bass sounds if the eartips do not fit snugly in your ears.

Replacing the eartips

Remove the old eartip and attach the new eartip by pushing it onto the headphone at an angle (see figure).
Push firmly on the eartip so that the inside of the eartip expands, and push the eartip onto the post as far as it will go.

• Periodically remove and clean the eartips as they become dirty easily. Using dirty eartips may cause the headphones themselves to become dirty, resulting in deteriorated sound quality.
• Eartips are consumable parts that degrade through storage and use. If the eartips are loose and easily removed or if they appear to have degraded, purchase replacements.
• When reattaching eartips that were previously removed, be sure to check that they are securely attached. Injury or illness may occur if the eartips become detached and are left inside the ear.

Troubleshooting

• Charge the product.

Unable to pair.|

• Confirm that the Bluetooth device communicates using Ver. 2.1+EDR or higher.
• Place the product and the Bluetooth device within 1 m (3.3′) of each other.
• Set the profiles for the Bluetooth device. For procedures on how to set profiles, refer to the Bluetooth device’s user manual.
• Remove the pairing information for the Bluetooth device then pair the product with this device again.
• When switching to a Bluetooth device, you may not be able to pair because the previously connected Bluetooth device cannot be disconnected. In such cases, press and hold (about 6 seconds) the volume buttons (+/-). The product will switch to the “searching for devices” state and you will be able to pair with your desired Bluetooth device.

No sound is heard / Sound is faint.|

• Turn on the power of the product and the Bluetooth device.
• Turn up the volume of the product and the Bluetooth device.
• Confirm that the product and Bluetooth device are connected via A2DP (or audio device).
• Unpair the product and Bluetooth device, and then pair them again.
• Move away from obstacles between the product and the Bluetooth device, such as people, metal or walls, and place the product and device closer together.
• Switch the sound output of the Bluetooth device to the product.

Sound is distorted / Noise is heard / Sound cuts out.|

• Turn down the volume of the product and the Bluetooth device.
• Keep this product away from devices that emit radio waves such as microwaves and wireless routers.
• Keep this product away from TVs, radios, and devices with built-in tuners. These devices can also be affected by the product.
• Turn off the equalizer settings of the Bluetooth device.
• Remove obstacles between the product and the Bluetooth device and place them closer together. For details, please refer to “For a more comfortable Bluetooth® communication experience” (p.4).

Cannot hear the voice of the caller / Voice of the caller is too quiet|

• Turn on the power of the product and the Bluetooth device.
• Turn up the volume of the product and the Bluetooth device.
• Confirm that the product and Bluetooth device are connected via HFP/HSP (or phone connection).
• Unpair the product and Bluetooth device, and then pair them again.
• Switch the sound output of the Bluetooth device to the product.

The product cannot be charged.|

• Securely connect the included USB charging cable and charge the product.

• When charging the product, charge it in a well-ventilated place (10 to 35 °C) away from direct sunlight

• For details about how to operate your Bluetooth device, refer to the device’s user manual.

• If the problem still remains, reset the product. To reset the product, refer to “Reset function” (p.11) under “Using the produc

Headphones

Type| Dynamic
Driver| 9.8 mm
Sensitivity| 102 dB/mW
Frequency response| 5 to 30,000 Hz
Impedance| 16 Ω
Microphone

Type| MEMS type
Polar pattern| Omnidirectional
Sensitivity| -42 dB (1 V/Pa, at 1 kHz)
Frequency response| 50 to 4,000 Hz
Communication specifications

Communication system| Bluetooth version 5.0
Maximum RF output| 10 mW EIRP
Maximum communication range| Line of sight – approx. 10 m (33′)
Frequency band| 2.402 GHz to 2.480 GHz
Modulation method| FHSS
Compatible Bluetooth profiles| A2DP, AVRCP, HFP, HSP
Support codec| AAC, SBC
Supported content protection method| SCMS-
Transmission band| 20 to 20,000 Hz
Other

Power supply| DC 3.7 V lithium polymer battery
Charging time| Approx. 2 hours
Operating time| Continuous transmission time (music playback): Max. approx. 8 hours
Weight| 13.5 g (0.48 oz)
Drip-proof specification| IPX2
Operating temperature| 5 °C to 40 °C (41 °F to 104 °F)
Accessories| • USB charging cable (30 cm (12”), USB Type-A / USB Type-C) • Eartips (XS, S, M, L) • Pouch
Sold separately| Eartips

• The figures above depend on operating conditions.

For product improvement, the product is subject to modification without notice.

• The Bluetooth® word mark and logos are owned by Bluetooth SIG, Inc. and any use of such marks by Audio-Technica Corporation is under license. All other trademarks are property of their respective owners.

Customer Support

Audio-Technica Corporation
2-46-1 Nishi-naruse, Machida, Tokyo 194-8666, Japan
©2019 Audio-Technica Corporation
Global Support Contact: www.at-globalsupport.com

References

• Global Support｜Audio-Technica Corporation オーディオテクニカ
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