KING WANG DAR INDUSTRIAL -- SOUND BOX Product Info.

Remarks:
1. Power supply voltage: AC 110V. 220V. 230V.
2. Speaker spec: 3"
3. Speaker impedance: 4
4. Frequency: 100~18KHZ
5. Distortion: <0.5%
6. S/N: 80 DB
7. Input sensitivity: 350 mv
8. Output power: 3W + 3W
9. Input impedance: 13.5 k