wireless headband earphone,bluetooth v4.0 headset
Specific Design
Stereo Bluetooth V4.0 Headset Folding type
Headset:
Bluetooth version: bluetooth V4.0   specker Dimension:F40mm Impedance:32ohm
Support: HFPV1.5, A2DPV1.2, AVRCPV1.4, HSP1.2, GAVDP1.2, IOP  
SNR: 96dB SNR stereo ADC and stereo DAC
Sensitivity: -80dBm less 0.1%BER
Working distance: 10m
Working frequency: 2.4 - 2.480GHZ
Transmission power: CLASS2, 4dbm
Audio S/N: more than 85dB
Audio performance: SBC decoding
Battery: 3.7V/300mAH built-in rechargeable Li-on battery
Charging voltage: DC5V
Charging time: about 1.5 hours
Working currency: less 45mA
Standby currency: less 500uA
Working temperature: -40℃ to +85℃
Play time: about 6-7 hours
Talk time: about 7-8 hours
Standby time about 400 hours

Features: 
1. Spacious, clear sound with deep and enhanced bass and immersiver listening

2. Smooth highs and dynamic lows

3. Closed back design offers isolation and keeps the sound from disturbing your neighbors

4. Perfect use for CD, MP3/MP4 player

5. Light-weight for comfort wearing

6. Noise free headset can be added;

7. Customers Logo available;

8. CE, ROHS Certeficates.