Model No. : MDS021 
IC : AB5616B(2 channel sound,3D sound, heavy bass) 
Bluetooth version : V5.0 
Connection Distance : ≥10m（no barrier) 
Battery Capacity : 400mAh 
Playing Time : 25 hours (80% sound volume) 
Turn off Time : Automatically turn off after 3 minutes if disconnected Bluetooth and no operation 
Power on standby time : 800Hs 
Power off standby time : 130000Hs 
Charge Time : 55 minutes 80%,65 minutes full charged 
Charging Port : Micro USB