Product introduction: 1. Name: Bluetooth sports music fashion earphone 2. No: BT-10 3. Style: in ear earphone with micphone 4. Location: Like Sports and Listen to the music when in motion 5. Waterproof and sweat (Water splashing) Technical specification: 1. Bluetooth ver: 4.1 CSR 2. CVC 6.0 noise reduction 3. talk time: 5h 4. music time: 6h 5. Standby time: 200 hours 6. charging time: 1.5 hours 7. Sensitivity: 103db +/- 3dB 8. Impedance: 32Mw 9. Mic: Yes 10. Sensitivity: -38db +/- 3dB 11. Color: white,red,black, 12. Content: 1x Bluetooth headphone (with package) 1 x USB Cable