Wondom 2 X 50Watt RMS Class D Powerful Audio Amplifier TDA7492 with Aluminum Case DC9-24V 2-6 ohm Stereo Amp for Home Audio Bank Self-service Vending Gaming Kiosk Ideal Class-D power amplifier Range of power supply: DC12V-24V. Can be used with most laptop power adaptors. Fully made from aluminum alloy, compact, pleasing, fashionable and durable High-quality audio processor IC and original TDA7492 chip ensures long time use High input sensitivity