AT AND T A21 Wireless Headphones
Package Contents
Warning
Carefully read the warning below before using your headset. Store this manual with your product packaging.g
Following the safety precaution manual reduces the risk of fire and injury.
To reduce the risk of injury:
- Keep batteries out of reach of children.
- Do not heat, open, or dispose of the battery pack in a fire.
- Do not allow metal objects to touch the battery on the device.
- Do not expose the battery pack to excessive heat.
- Do not use over 5V to charge this product.
Pairing
Find the Bluetooth name “ATT_SYNC_D1” or “ATT_SYNC_D2” in the search list to connect it to your mobile device or other Bluetooth-enabled devices.
Kev Oneratina Instructions
- Long-press the button for 3 seconds to power on.
- Long-press the button for 3 seconds to power off.
- While music is playing:
- Click the power button once to play/pause music.
- In Bluetooth-connected mode, for an incoming call:
- Short press to answer/end the call, long press to decline the incoming call.
- Quick double-press to activate the voice assistant.
- Long press: next song
- Short press: volume up
- Long press: previous song
- Short press: volume down
- Short press: switch between noise reduction modes – ANC on / ANC off / Transparency.
- When in ANC mode, double-press to enter adaptive ANC mode. You will hear a beep (press one more time to exit ANC off mode).
- Short press: switch between multiple sound effects EQ – bass, vocal, high pitch (Note: switch EQ freely only in normal mode Quick double-click: 3D surround sound (Note: switch 3D surround sound freely in any mode)
You can also use a 3.5 mm cable to connect your mobile device to the headset and listen to music from your mobile device or a computer.
Charging Function
Fully charge the headset before using it for the first time.
Technical Specifications
AT&T One-Year Limited Warranty
What is covered: AT&T warrants to the first retail purchaser of this wireless accessory that should this product or any part be proved defective in materials or workmanship, from the date of proof of purchase for a period of one year, then it will be subject to the terms of this one-year limited warranty. Such defects will be replaced or have a credit issued at the option of AT&T, without charge for parts or labor directly related to the defect. Proof of purchase required. Limitations and exclusions: This warranty does not apply to any cost incurred for removal or re-installation, or to any product or part thereof which has suffered through normal wear and tear, alteration, improper installation, physical abuse, misuse, neglect, or accident.
Nor does it cover defects caused by shipment to an AT&T service center, or repair, or service of the product by anyone other than an AT&T service center. Damage resulting from an act of God, including but not limited to fire, flood, earthquake, and other natural disaster,s will be excludedThis limiteded warranty instead of of all other warranties, express or implied, either in fact or byoperations of law, statutory, or otherwise, including, but not limited to, any implied warranty of merchantability or fitnessfor aa particular use.
AT&T does not authorize any other person to assume any liability beyond the warranty herein described. In no event, whether based on contract or tort, shall AT&T be liable for incidental, inconsequential, indirect, special, or punitive damages of any kind from the use of this product, including interrupted or incomplete phone calls or arising out of any breach of this warranty. In no event shall AT&T be liable for damages to the purchase price. AT&T and the AT&T logo are trademarks of AT&T Intellectual Property. Other manufacturer warranties may apply.
This device complies with Part 15 of the FCC Rules and contains license-exempt transmitters/receivers that comply with Innovation, Science and Economic Development Canada’s licence-exempt RSS(s).
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
This device 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 reasonableprotection against harmful interference in a residential installation. This device 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 device does cause harmful interference to radio or television reception, which can be determined by turning the device 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 device and receiver.
- Connect the device 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
Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment
Documents / Resources
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AT AND T A21 Wireless Headphone [pdf] User Manual ATTA21, 2BK3OATTA21, A21 Wireless Headphone, A21, Wireless Headphone, Headphone |