BT-207-   Aluminium box & mesh

Bluetooth version:JL4.2
Speaker :4R5W

Resistance：4Ω
F.R.：20-20KHZ
Distortion：≥75DB
Battery: 400 MAh

1.Product size：91*47*20 MM
2.Product weight:  81G
3.Colors: Blue/silver/black

4.Rechargeable Li-ion battery; charging port: Micro USB;
5.play time: 2~3H