Speaker: 4Ω 3W
Aluminium alloy case
Can be used in single mode or twins mode
Support music-playing
Support the cell phone hands-free calls, hanging-up functions
Bluetooth transmission function (Bluetooth Version 4.0)
Rechargeable lithium battery 300mAh
Dimension:  51(D)×45(H)mm
Weight: 80g
Color:blue,silver,red,black,gold