Bluedio HT Turbine Wireless Bluetooth 4.1 Stereo Headphones with Mic (Blue)
Specification: Bluetooth Version: V4.1 Bluetooth Profiles: A2DP,AVRCP,HSP,HFP Bluetooth Transmission Frequency: 2.4GHz-2.48GHz Operating Range: Up to 10m (free space) Frequency Response: 20Hz-20kHz Talk Time: Up to 45 hours Bluetooth Music Time: Up to 40 hours Standby Time: Up to 1625 hours Charging Time: 2 hours Accessories Micro-USB charging cable (5ft) 3.5mm Audio cable User Manual