Bluetooth Version Bluetooth V5.0 Bluetooth Profiles A2DP?AVRCP?HFP?HSP Audio Codecs SBC?aptX Effective Distance 10m Playback Time About 6h(Earbuds)+18h(Charging Case) Charging Time About 1.5h Input 5V? 50mA(Earbuds) 5V? 350mA(Charging Case) Response Frequency 20Hz-20KHz Sensitivity 95±3dB