JOYROOM JR-T03S Bluetooth 5 0 Binaural TWS Bluetooth Headsetparameter 1 Bluetooth version: V5 0 2 Frequency response: 20hz-20khz 3 Sensitivity: 103dB SPL +- 3db 4 Support protocol: HSP HFP A2DP AVRCP 5 Impedance: 16 ohm 6 Voltage: 3 3-4 2 V 7 Power: 5mw 8 Battery capacity of charging compartment: 400mAh 9 Headphone battery capacity: 45mAh 10 Music time: about 3 hours (percent 80 volume) 11 Talk time: about 3 5 hours 12 Standby time: about 80h 13 USB charging time in the charging compartment: about 1h 14 Wireless charging time in the charging compartment: about 3h 15 Headphone button control: touch control 16 Product size (charging box): 44x22x53 8mm 17 Product weight: about 41g feature 1 New upgrade of Bluetooth 5 0, lossless transmission and faster speed 2 Touch technology, size 1:1, comfortable to wear 3 Intelligent noise reduction, clear bilateral communication, newly upgraded stereo dual channel 4 Easy experience, no button touch technology, new SIRI call function 5 Strong power reserve, standby time up to 80 hours (T03 charging bin 350, T03S charging bin 400mAH) 6 Support wireless charging function 7 Compatible with iOSAndroid 8 8 Pin charging interface 9 Note: This product does not support pop-up function