Feature: 1. Compatible: Bluetooth amplifier's stereo RCA input and jack input can connect all types of sound devices such as MP3 players, DVD players, and computers, and can output sound to a total of 5 speakers. 2. Multiple Function: In addition to hifi and home theater capabilities, the bluetooth amplifier has two front panel microphone inputs that allow you to be entertained at PA events, karaoke parties, or conferences. 3. High Power: Surround sound home theater receiver gives you 500W peak power for 4‑16 ohm impedance multi speakers, allowing you to enjoy superior sound. 4. Integrated Radio Receiver: The surround sound home theater receiver also offers an integrated radio receiver that can be tuned to all your favorite stations. 5. Aluminum Alloy Material: Home bluetooth sound power amplifier is made of superior aluminum alloy, which is durable, corrosion resistant and has a long service life. Specification: Item Type: Bluetooth Home Theater Receiver Material: Aluminum Alloy Maximum Power: 500W, 500W, 120W Rated Voltage: 110V Rms Value: 250W, 250W, 120W Distortion Rate: 0.01% Impedance: 4 to 16 Ohms Channel: 5 Channels Amplifier Type: AV Amplifier HiFi: Yes Bluetooth: 4.0 Remote Control Battery Specification: 2 x AAA Battery (Not Included). Package List: 1 x Bluetooth Home Theater Receiver1 x Instruction Manual1 x Remote Control1 x Connecting Line