Bluetooth standard V4.1 sport stereo headphone. Noise-cancelling microphone reduces background noise</br>Active pairing: Super easy and fast paring with your smartphone or other Bluetooth device; Multipoint technology?? LED battery status indicator</br>Sweat-proof?? durable design. Up to 8 hours of Talk/Playing Time and 180 hours Standby Time</br>Simple-to-use: control all functions of your music (volume?? sound?? song selection) and calls from your phone via our simple-to-use user interface on the headphones themselves</br>Packaging includes: H783 HeadSet?? Ear hook?? Micro USB Charging cable?? Operating instructions</br><br/>http://www.amazon.com/gp/product/B00Y6LSV6O