Features: 1.Multiple Input and Output: There are DVD signal and AUX signal two signal input and a LINE output, and the signal output can be connected to the ultra low tone speaker or other equipment signal source. 2.Bluetooth 5.0 Wireless Connection: The sound stereo amplification device is equipped with bluetooth music streaming, which is compatible with smart devices, and is easy to pair with the receiver. 3.Accurate Manufacturing: With elaborate manufacturing technology and exquisite workmanship, to ensure stable performance and high reliability. 4.High Working Power: This bluetooth stereo amplifier receiver provides high output power, which is is perfect for your karaoke and home theater acoustic sound system. It can accommodate 2 sets of speakers, not only perfect for home audio but also for outdoor speakers. 5.Easy Control: The improved professional sound stereo amplifier has clear and responsive buttons for mode control. Knobs can control microphone echo, volume, delay, bass, treble, audio input, line output, channel and speaker system. specification:Item Type: Audio Amplifier Material: Aluminum Alloy Signal to Noise Ratio 80dB Separation Degree 54dB Crosstalk Attenuation 53dB MIC Signal to Noise Ratio 70dB Remote Control Battery : 2 x AAA battery (not included) PackageList:1 x Audio Amplifier 1 x Instructions 1 x Remote Control