CRYSTALAUDIO NB1 Bluetooth In Ear Neckband Headphones User Manual
- June 6, 2024
- CRYSTALAUDIO
Table of Contents
NB1
In-ear Neckband Headphones
User Manual
Overview
Charge it
- Use the micro USB cable which is included in the package of the headphones.
- A different micro USB cable might not be able to charge correctly (or even not at all) the battery of the headphones.
Connect:
- the micro USB plug into the headphone’s port.
- the USB plug into any compatible USB device.
- While the battery is charging the indicator light is red.
- When the battery has been fully charged the light turns blue.
A full charge of the battery takes approximately 2 hours.
The headphones are automatically deactivated during the charging process.
Use it
Connect it
• Please turn the headphones off when not in use in order to preserve battery
life.
• The headphones will connect to the last paired device automatically as soon
as you turn them on.
• The headphones will be automatically turned off if they are not connected to
a device within 3 minutes.
WARRANTY
The product comes with a 1-year warranty starting from the purchase date.
Warranty is valid only with the original proof of purchase (receipt or
invoice).
This warranty covers only the repair or replacement of the device and it is
effective only in Greece.
DECLARATION OF CONFORMITY
Radio equipment and telecommunications terminal equipment, Directive
2014/53/EU
Crystal Audio hereby declares that the product, ΝΒ1 Wireless Headphones, is in
conformity with provisions of the Directive 2014/53/ΕU. The complete text of
the Declaration of conformity can be found on the following webpage:
www.CrystalAudio.com
Technical Specifications
| Bluetooth Version: | v5.0 |
|---|---|
| Battery: | 110mAh |
| Charge Time: | ≈ 2 hours |
| Talk/Playback Time: | up to 10 hours |
| Cable Length: | 66cm |
| USB Cable Length: | 50cm |
| Drivers: | 10mm |
| Sensitivity: | 100dB ± 3dB |
| Impedance: | 32Ω |
| Freq. Response: | 20Hz-20KHz |
| Weight: | 18g |
WARNING
– Using the headphones at a high volume for an extended period might lead to
hearing damage.
– This product is not a toy. Keep out of reach of children.
– This product is not waterproof. It should be kept away from any kind of
liquids and places of extreme humidity, rain, snow, etc.
– Low battery may lead to “Poor” or “Lost” Bluetooth connection.
– Do not overcharge the battery of the device.
– Avoid exposing the product to excessive heat sources such as fire, candles,
radiators, direct sunlight, etc.
– This product should not be treated as household waste.
Please hand over to the applicable collection point for the recycling of electronic equipment.
Designed in Europe by Crystal Audio.
Assembled in China with the highest quality standards.
The Bluetooth® word mark and logos are registered trademarks owned by Bluetooth SIG Inc. and any use of such marks by Crystal Audio is under license.