Model: OEP20W Work mode: D class(PWM modulation) Chip:OEP20W Operating Voltage:DC6V-18V Frequency response:20Hz-15KHz Item Description 1. Model: OEP20W 2. Work mode: D class(PWM modulation) 3. Chip:OEP20W 4. Operating Voltage:DC6V-18V 5. Size:18*18*2mm 6. Output Power:20W@8ohm/18V;13W@4ohm/12V;9W@8ohm/12V;6W@4ohm/8V;16W@8ohm/18V;10W@4ohm/12V 7. Frequency response:20Hz-15KHz 8. Channel: mono Channel 9. Quiescent Current:8.5mA@12V 10. Noise ratio:102dB 11. Recommended Audio:20-100W 12. Output Impedance:4-8ohm 13. Harmonic distortion:less then 0.1% Color: As Shown Material: Pc Package Contents: 1*Audio Module Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.