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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.
Technical Specifications
Bluetooth® Version:
Battery Capacity:
Charge Time:
Talk/Playback Time:
AUX Cable Length:
USB Cable Length:
Drivers:
Sensitivity:
Impedance:
Freq. Response:
Weight:
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.
v5.0
300mAh
≈2 hours
up to 10 hours
120cm
50cm
40mm
105dB ±3dB
64Ω
20Hz-20KHz
140g
DECLARATION OF CONFORMITY
Radio equipment and telecommunications
terminal equipment, Directive 2014/53/EU
Crystal Audio hereby declares that the product, BT4
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
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
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.
www.CrystalAudio.com
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