This wireless Bluetooth hands free headset provides you a feeling of quiet and comfortable listening experience. Specially designed with in-ear style， giving you ultimate comfort and fit. Characterized by stylish design and advanced technology， you will be cool and trendy once wearing it.CVC 6.0 noise reduction，clear talk， Enjoy your hands free calls，keeping maximum comfort while looking good.Product introduction:1. Name: Bluetooth sports music fashion earphone2. No: MS-B13. 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: 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， black，red12. Content: 1x Bluetooth headphone (with package) 1 x USB Cable 1 x Earplug(S/M/L) 1 x clamp