Compact Bluetooth amplifier that delivers 5.1channel stereo sound with a rated power of 450W in a small form factor, providing clear, smooth and impurity audio. LCD display and remote control: LCD digital display shows current input and status; remote control included for convenient operation and adjustments. Bluetooth music streaming: wireless range up to 40 feet (10 meters); compatible with smartphones, tablets, and computers for seamless audio playback. Flexible input options: RCA audio input for CD players and DVD players; USB/SD card playback; supports two microphone inputs simultaneously. Use scenarios Home entertainment: connect a CD/DVD player and stream from a phone or tablet to enjoy quality audio in the living room. Karaoke or small gatherings: two microphone inputs allow live singing or speeches. Classroom or small office use: wireless streaming from laptops or tablets, plus USB/SD playback for background music or presentations.