Bluetooth version: 5.0
Transmission distance: outdoor linear distance 10-18 meters

Battery capacity: polymer lithium battery 40mah + charging box battery capacity: 335mah

Use time: about 3 hours Standby time: 2-3 days
Charging time: one hour for earphones, one hour for charging compartment

Touch button function: long press to turn on, long press to turn off, click music to pause/play/incoming call/end call, double-click the next song.
Color box size: 12.5*8.5*3.7cm
Package content: packaging (heaven and earth cover)*1 charging cable*1 manual*1

Set weight: 90G