Specifications:

Bluetooth version: V4.1
Operating distance: Up to 10m (free space)
Bluetooth profiles: A2DP, AVRCP, HSP, HFP
Talk/music playtime: Approximately 4.5 hours
Standby Time: 180 hours
Charging time: Approximately 2 hours

Compatible For:

iPhone/Nokia/HTC/Samsung/LG/Moto/PC/iPad/PSP and other Bluetooth devices.

Function: Caller report/line control answer/hang up/rejection/on-off/redial/mute/volume adjustment/Chinese-English shifting/intelligent one-driving-two music pause/play, up and down song switching.

Package include:

1 x Bluetooth 4.1 sports headset
1 x USB charging cable
1 x Headphone package
2 x silica gel plug

• Wireless Sports Stereo Sweatproof Bluetooth Earphone Headphone Earbuds Headset
• Portable lightweight and sweat-proof design / Built-in microphone / Built-in rechargeable Li-ion battery
• Clear bass resonance, CVC wind noise reduction, and superior sound isolation
• Sweat-proof: Effectively prevent sweat and rain interfere with headset operation
• Caller report, line control answer/hang up/rejection/on-off, redial, mute, volume adjustment, Chinese-English shifting, intelligent one-driving-two, music pause/play, up and down song switching4

Wireless Sports Stereo Sweatproof Bluetooth Earphone Headphone Earbuds HeadsetChaiMind