Bluetooth CSR Headsets Boom Mic Noise Reduction Headphones Wireless Earphones

Bluetooth specification: CSR 8635 V4.1
Frequency range: 2.4GHz-2.4835GHz
Support profile: Handsfree, A2DP, AVRCP
Sensitivity: - 40 2dB
Working distance: 30ft
Music time: 12 hours
Talking time: 20 hours
Standby time: 250 hours

Advanced 4 times Noise Cancellation Technology with DSP to provide clearer and crisper call quality
Switching between music and phone calling allows you to answer & make calls while you are listening music
Ergonomic design, free to adjust the length to find the best position to wear it.

Pairing Tips:
1. fully charge the headset before start using
2. Hold the power button for 8 seconds or longer till the led light blinks in red & blue in turn or hear a long beep, then two short beep, this is the status of being ready to pair.
3. Make sure your phone bluetooth is on and in search or discovery status
4. If you cannot pair the headset, you can reset the headset by hold the volume increase "+" button about 6 seconds while the headset is charging. After that you can try to pair the headset with your bluetooth devices again.

Package list:
1. Bluetooth headset with black color
2. USB cable
3. User manual
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