BT315 Sport Bluetooth Headset Wireless Stereo Earphone Bluetooth 4.1 Earpiece With Mic Sport Bass Magnetic Necklace Earpiece(Blue)

Product introduction:1. Name: Bluetooth sports music fashion earphone2. No:BT3153. Style: in ear earphone with micphone 4. 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: 6h4. music time: 5h5. Standby time: 120 hours6. charging time: 1.5 hours7. Sensitivity: 103db +/- 3dB8. Impedance: 16Mw9. Mic: Yes10. Sensitivity: -38db +/- 3dB Content: 1x Bluetooth headphone1 x USB Cable1 x manual