Features:
2 channels output digital audio power amplifier.
3.5mm !#!amp!*! RCA audio input interfaces.
USB port for MP3/ MP4 charging.(Power out only)
VOLUME， TREBLE， BALANCE and BASS adjusting knobs.
Colorful LED light around the VOLUME knob when the amp is on.
Made of aluminum alloy， lightweight and durable.

Specifications:
Color: Red
Material: Aluminum Alloy
Output Power: 2 * 20W
Bass/ Treble Control: ±10db
Frequency Response: 29Hz-18KHz
Total Harmonic Distortion: ＜ 0.4%
Signal to Noise Ration: ≥ 75dB? ?
Input Voltage: DC 12V 5A
Item Size: 15.5 * 7 * 4.2cm / 6.1 * 2.8 * 1.7in
Item Weight: 250g / 8.8oz
Package Size: 16 * 11.5 * 4.5cm / 6.3 * 4.5 * 1.8in ?
Package Weight: 290g / 10.2oz

Note:
Power adapter is not included.
The USB port is for charging only.

Package List:
1 * Power Amplifier