Bluetooth 4.1 +EDR : 2016 latest Bluetooth Tec is compatible with most Bluetooth-enabled phones</br>Battery terms: 60 mAh built-in rechargeable li-polymer battery ensure a 4h talking time and 160h standby time</br>Sweat protection: Water resistant protection against body sweat and wet weather conditions</br>Super signal: Super ceramic antenna improves signal strength and eliminates intermittent connections</br>Ergonomic earbuds design: Comfortably over ear design fit the ear canals</br></br>Product Description</br></br>Portable hands-free headset: Compared with Bose and beats earphone?? the URbuds R1 is smaller. Noise isolating CVC6.0 Tec of CSR chip completely cancel the background noise. Compatible perfect pair to iPhone 4 4s?? iPhone 5 5s?? iPhone 6 6s?? iPad?? Samsung galaxy?? LG?? Blackberries?? Motorola?? Nokia?? amazing signal 2016 latest ceramic antenna eliminates intermittent connections. The transmission distance up to 20m. Technical specification: Bluetooth version:4.0?? frequency range:2.4-2.48GHz?? support:A2DP?? AVRCP?? HSP?? HFP??