**Product name:BT2388 Manual portable mini **speaker /laptop speaker for phone
**Model:BT2388
**Color:can be customized
**Power supplier:DC5V
**Output power:3W(1KHz,THD1%)
**Frequency:150Hz-18KHz
**Signal&noise ratio:≥85dB
**Impedance:4 OHM(Ω)
**Li-ion Output:3.7V~4.2V+0.05V
**Li-ion Input:5V
**Lithium battery:350mAh
**Speaker Unit:40mm
**Case Material:ABS
**Dimensions:D62*H82.5
**Weight:180g
**Color:OEM