ONEU Wireless Class D HIFI Digtal Stereo Audio High Power Mini Home Car Bluetooth Amplifier With SD/USB Reader Built-in HIFI Bluetooth 4.0 for Wireless Audio Streaming - Compatible with All Your Favorite Bluetooth Devices Compact and Powerful Mini Amp System, Works with iPhone, Android, Smartphone, iPad, Tablet, PC, etc with 3.5mm Aux output,support earphones headphones,with SD/MMC USB Reader and Remote controller ,convenience to use Small and lightweight(1 lb),Can use At home or car Input power can be DC 12V-24V,Power Output:2 x50 Watt Pleas Note: This amplifier is only suitable for speaker with 4~8 Ohm