HV 800 Universal Wireless Bluetooth Stereo Headset Neckband Style Earphone Headphone (Black) Features: 1. Charging voltage: DC5V 150mAh 2. Working current: 25-35mA 3. Bluetooth A2DP Working range: 10m 4. Output power: 35mW 5. Frequency range: 2.401-2.480GHz 6. Frequency response: 20Hz-20KHz 7.

HV 800 Universal Wireless Bluetooth Stereo Headset Neckband Style Earphone Headphone (Black) Features: 1. Charging voltage: DC5V 150mAh 2. Working current: 25-35mA 3. Bluetooth A2DP Working range: 10m 4. Output power: 35mW 5. Frequency range: 2.401-2.480GHz 6. Frequency response: 20Hz-20KHz 7. Working Time: Music/ HuaTong state 10 h 9. Charging Time: 1h-2h 10. Talk time: 8-15 hours, play time: 6-10 hours 11. Music Playing Time: up to 10 hours 12. Frequency Response: 20 ~ 20000Hz 13. Sensitivity: 80dB 14. Impedance: 32 ohms 15. Speaker Power: 2 x 18mW 17. 16. Weight: 118g 18. 17. Color: same as picturePackage Include: 1 x Neckband Style Bluetooth Headset 1 x USB Cable