Specification:Bluetooth version:5.2
Material:ABS
Support function: "Ambient noise reduction"
Protocol:HSP HFP A2DP ACRCP SPP PBAP
Transmission distance:10-15m
Earbud battery:35mAh
Charging time:1.5 hours
Charging voltage:DC 5V
Rechargeable case battery:300mAh
Music playback time: 6-8 hours (volume 50%-100%)
Talking time: 3-4 hours
Charging box hours of use: 30-60 hours (monaural and binaural)
Standby time:140 days
Frequency response range:20-20KHZ