Features:
Ultra-small size and large power， perfectly suitable for using in refit and maintain.
Maximum Audio Output Power: Stereo Double-track: 15W (left track) + 15W (Right Track) 
Audio Input connector: Standard 3.5mm audio input jack.
Resistor Element: Full metallic membrane high-precision resistor.
Capacity cell: Use high-quality and high-performance Audio capacitor.
Indicator: LED high-brightness blue indicator light.

Specifications: 
Operation Voltage: AC 5 ~ 18V (We suggest that the Operation Voltage is DC 12V， and the current is 2A or Above). 
Speaker impedances: 4 ~ 8ohm. 
Color: Blue (As the Picture)
Main Item Size: 7.5 * 4.8 * 4.4cm / 3.07 * 1.96 * 0.94in (L * W * H without potentiometer handle)
PCB Size: 50 * 48 * 1.6mm (Thickness) / 3.74 * 1.96 * 0.06in 
Package Item: 52g / 1.83oz
Package Size: 16.0 * 14.0 * 5.0cm / 6.29 * 5.51 * 1.96in
Package Weight: 60g / 2.12oz

Package List:
1 * Audio Amplifier Board