Product introduction:1. Name: Bluetooth sports music fashion earphone2. No: BT-103.Style: in ear earphone with micphone4. Location: Like Sports and Listen to the music when in motion5. Waterproof and sweat(Water splashing)Technical specification:1. Bluetooth ver: 4.1 CSR2. CVC 6.0 noise reduction3. talk time: 5h4. music time: 6h5. Standby time: 200 hours6. charging time: 1.5 hours7. Sensitivity: 103db +/- 3dB8. Impedance: 32Mw9. Mic: Yes10. Sensitivity: -38db +/- 3dB11.Color:white,red,black,12. Content: 1x Bluetooth headphone (with package)1 x USB Cable