Latest Wireless CSR 4.0 Bluetooth Headset Headphones Headphones for iPhone, Samsung, HTC and other Bluetooth devices, Stereo Two-channel MP3 music hands-free and vibration microphone.
Product Specifications: 1. Charging voltage: DC5V 150mAh 2. Working current: 25-35mA 3. Bluetooth A2DP working range: 10 meters 4. Output power: 35mW 5. Frequency range: 2.401-2.480GHz 6. Distortion coefficient: ≤1% 7. Frequency response: 20Hz-20KHz 8. Working Hours: Music / Huatong 4-6 hours (volume will affect the time) 9. Signal to noise ratio: S / N≥95 10. Charging time: 1h-2h 11. Talk time: 4-6 hours, play time: 4-6 hours 12. music playback time: up to 4 hours 13. Frequency response: 20 ~ 20000Hz 14. Sensitivity: 80dB 15. Impedance: 32 ohms