Bluetooth version: V5.0
Power display: LED display
Compatible protocol: A2DP / AVRCP / HFP / HSP
Transmission distance: 10M
Standby time (mobile phone is in standby state): 100 hours
Talk time: about 3 hours
Music playback time: about 3 hours
Headphone charging time: 1-2 hours
Battery capacity of power box: 300 mAH
Compatible system: for IOS / Android / Windows
Verification: CE / FCC / ROHS
Features: can measure body temperature