defender B571 LED Web Wireless Headphones Instruction Manual
- October 30, 2023
- Defender
Table of Contents
defender B571 LED Web Wireless Headphones Instruction Manual
Functions
Charging
NOTE: The Charge level displays for smat phone is approxiamate. Incorrect display of the charge level is not a broken.
CONNECTION
AUX MODE
Turning Off The Backlight
How To hold Headphone
WIRELESS STEREO HRADSET OPERTINAL MANUAL
Declaration of Conformity
Operation of device (devices) may be affected by strong static, electrical or high-frequency fields (radio installations, mobile telephones, microwaves, electrostatic discharges)/ If occurs, Try increasing the distance from the devices causing the interface.
Disposal of batteries, electrical and electronic equipment
This sign on the product, its batteries or package indicates that the product
cannot be disposed together with domestic waste. It should be delivered to an
appropriate batteries, electrical and electronic equipment collecting and
recycling company. Terms and conditions of safe and efficient use of the
product
Usage precautions:
- Use the product for its intended purpose only.
- Do not disassemble. This product does not contain parts that are entitled to self-sufficient repair. On the question of maintenance and replacement of a failed item apply to a dealer or Defender authorized service center. While receiving the product make sure that it is unbroken and there are no freely moving objects inside the product.
- Keep away from children under the age of 3. May contain small parts.
- Keep away from humidity. Never immerse the product in liquids.
- Keep away from vibrations and mechanical stresses, which can cause mechanical damaging of the product. In case of mechanical damage no warranties are provided.
- Do not use in the presence of visual damage. Do not use when the product is obviously defective.
- Do not use the product at temperatures below and above recommended temperatures (see the operation manual), under the conditions of humidity evaporation, as well as in hostile environment.
- Do not put into the mouth.
- Do not use the product for industrial, medical or manufacturing purposes.
- In case when shipment of the product was conducted in subzero temperatures, then before operating, the product should be kept in a warm placement (+16-25°C or 60-77°F) within 3 hours.
- Turn off the device each time, when it is not planned to use it for extended period of time.
- Do not use the device while driving the vehicle, if it is diverted attention, and in other cases when the law obliges you to turn off the device.
Features
- LED backlight of headphones
- Built-in microphone
- MicroSD card slot
- Audio cable included
- Adjustable headband
- Compact foldable construction
- An option to connect to two devices simultaneously
- Up to 9 hours of battery operation time
- Metal headband base
Specification
- Bluetooth specification: V5.0 + EDR, A2DP, AVRCP, HFP, HSP
- Membrane diameter: 40 mm
- Sensitivity (headphones): 115 dB
- Sensitivity (microphone): -42 dB
- Frequency response (headphones): 20-20000 Hz
- Frequency response (microphone): 100-16000 Hz
- Continuous talk / listening period: 9 hrs
- Connectors: micro-USB for power
IMPORTER: Defender Technology 00, Betooni str 11, 11415, Tallinn,
Estonia. Manufacturer: Shantou Chaoyang District Shengtena Electronic Factory.
Address: Gounan Village Industrial Area, Gurao, Chaoyang District,
Shantou City. Unlimited shelf life. Service life is 2 years. Date of
manufacture: see on the package. Manufacturer keeps the right to change
package contents and specifications indicated in this manual. The latest and
detailed operation manual is available at www.defender-global.com Made in China.