Description:
1.Bluetooth Speaker, MIC inside, handsfree function  
2.Support TF Card/USB drive/AUX/FM    
3.Rechargeable Li-ion battery; charging port: Micro USB  
4.play time:3-4H
Parameter:
Bluetooth Distance：10M
Bluetooth version:5.0+EDR
Speaker : 20-50M W  
Resistance：32Ω
F.R.：20Hz-20Khz 
Distortion：90DB
Battery：300MAH
Dimension & Weight:
1.Product size:18.3*14.5*8.1CM (fold)、20*21*8.1CM(tile)
2.Product weight:G
3.Box size:23*20.8*10.3CM
4.CTN size：52.5*43*48.5CM 
5.20PCS/CTN
6.G.W.:  10.17 KG  N.W: 9.17 KG
7.Colors:Black/Brown/Blue/Silver