Features 100 WATT POWER: The Bluetooth Stereo Amplifier Receiver provides 50W+50W dual channel stereo output, Impedance: 4~16 Ohms. With unrivaled sound superiority and lets you enjoy high quality amplified audio. 3 INPUT OPTIONAL: The digital amp box supports AUX/ USB/ Bluetooth input. Easy to connect the amp to DVD/TV/PC/STB/MP3 Player through the AUX Input. And through the USB Input, you can connect the amplifier to U-disk, more convenient to enjoy high-quality music. BLUETOOTH CONNECTIVITY: The sound amplifying device is equipped with Bluetooth 4.2 wireless music streaming 33ft wireless range. Works with today's latest devices including smart phone, iPad, iPhone and computer with hassle free receiver pairing. MINI BUT POWERFUL: Don't be fooled by the size, it'll give your entertainment system a serious boost. Compatible to for ipad, cellphone, MP3 player, CD player, dataplay, computer, decoder, etc. Use it in your car, your boat, your RV, your golf cart, your home- anywhere you need a great amplifier with low distortion and acoustically accurate reproduction of music. BUILT-IN SAFETY FEATURES: Equipped w/shortcut, overload, overhead protection to keep this amp connected devices functioning properly, safely. The built-in loudspeaker protection circuit protects your speakers from high volume bursts of audio.