Wireless Bluetooth Power Amplifier System - 420W 5.1 Channel Home Theater Surround Sound Audio Stereo Receiver Box w/ RCA, AUX, Mic w/ Echo, Remote - For Subwoofer Speaker - Pyle PT588AB 420 WATT POWER: The Pyle Digital 5.1 Channel Stereo Receiver is perfect for your karaoke, home theater entertainment system. It gives you 420W peak to be used for multi speakers w/ 4 ohms impedance allowing you to enjoy high quality amplified audio 9 INPUTS: The personal digital amp box features 4 HDMI IN / 1 OUT, 3 RCA audio input, subwoofer speaker OUT, preamp OUT, 3  microphone IN. Connect external sources such as TV, CD DVD player, tape deck. Features 4K ultra, 3D TV pass-through BLUETOOTH CONNECTIVITY: The professional integrated indoor house AV receiver is equipped w/ Bluetooth wireless music streaming. Works w/ todays latest devices including smart phones, tablets, iPhone and computer w/ hassle-free receiver pairing. Frequency Response: 20-20kHz. S/N Ratio: 85dB EQ CONTROLS: The surround sound amplifying device has crisp buttons for the audio sources, selector, mic adjustment and rotary knob for master volume adjustments. Features BT pairing switch, radio tuner, bass/treble, mute and delay buttons DISPLAY METER: The compact amplifier has a built-in digital LCD display panel which displays all the functions and input used. AM FM antenna, power cable wire and remote control are also included in the package for distant audio adjustments. Power input AC 115V 60Hz/230V 50Hz