Product Specification:1.Bluetooth Version:V5.32.Bluetooth Profile:A2DP,AVRCP,HFP, HSP 3.Working voltage:3.1V~4.2V4.Charging voltage:5V-1A5.Speaker specification:14.2mm*26.Frequency response:20Hz~20kHz7.lmpedance:32Ω8.Battery capacity of the headset: 40mAh9.Battery capacity of the storage box:300mAh10.Transmission distance:>10M 11.Call time:About 6 h12.Play time:About 5 h13.Waterprof :IPX414.Charging time of headset:1h15.Charging time of the Charging box:2hProducts include1 * One pair of Bluetooth headsets1 * Charging box1 * Charging cable1 * User Manual