Specials:- Bluetooth V4.1- Portable lightweight and sweatproof design- Built-in microphone- Built-in rechargeable Li-ion battery- Multipoint pairing (connect 2 bluetooth device)- support connect 2 bluetooth device in the same time.- Support voice prompt in English- Support voice calls prompt,

Specials:- Bluetooth V4.1- Portable lightweight and sweatproof design- Built-in microphone- Built-in rechargeable Li-ion battery- Multipoint pairing (connect 2 bluetooth device)- support connect 2 bluetooth device in the same time.- Support voice prompt in English- Support voice calls prompt, reporting calls number in English / chinese- Support power display for IOS- Support stereo listen music-Support change music,and adjust volume- Support multi language voice prompt: in English / chinese- Built-in 14.2mm nedymium driver- Clear bass resonance, CVC wind noise reduction, and superior sound isolationTechnical Specification:-Bluetooth specification: 4.1 EDR-Bluetooth profiles:HEP1.6,SHP1.2,AVRCP1.4,A2DP1.2-RF range:10m-Noise reduction:CVC6.0-Stand- by time:about 175 times-Calculation conversation time:bout 5 hours-charging time: about 2 hours-Dimension(LXWXH):40X24X32MM-Weight: 5.4gPackage:1 X super mini stereo Bluetooth Headset1 X USB charger cable1 X instruction manual