*Bluetooth version：CSR V4.1+EDR
*Loudspeaker: Φ40mm/32Ω
*Support A2DP, AVRCP,HSP, HFP
*Working time：about 14 Hours
*Working range：Class 2, up to 10 meters
*Standby time: about 400 Hours
*Battery：3.7V/Built-in 400mAH lithium ion
rechargeable battery
*Charging time: about 4 Hours
*Net weight: about 212.5g
*Size: 18.7*16.6*5.6CM
*Button:
*Multi-function button
Power ON/OFF, Play/ Pause
*Volume button
Volume up/ Next song, Volume down/ Previous song
*Accessory:
1pc USB charging cable
1pc manual