TWS Bluetooth headset

Model: JR-T03S Plus Bluetooth version: V5.1 Communication range: ≤10m (standard environment) Frequency response: 20hz-20khz Sensitivity: 103dB SPL +/ -3db Distortion rate: ≤5% Support protocols: HSP/HFP/A2DP/AVRCP/ Impedance: 16 Ω Voltage: 3.3 - 4.2 V Power: 5mw Battery capacity of charging bin: 320mAh Earphone battery capacity: 30mAh Music time: About 6h (80% volume) Call time: About 5h Standby time: About 120h Charging bin USB charging time: About 1.5h Charging bin wireless charging time: About 3h earphone button control: Touch control