Features: - 4 Vacuum Tube Power Amp - Bluetooth Wireless Streaming Ability - Built-in USB Playback - LED Display - Built-in Cooling Fan - Blue LED Screen for Media Playback Information - Double-sided Fiber Circuit Board - CD/DVD Inputs (L/R) - Subwoofer Output - Master Volume Control Bluetooth Connectivity: - Receives Wireless Signal for Audio Streaming - Simple & Hassle-Free Pairing Setup - Integrated Antenna for Extended Wireless Range - Works with All of Today’s Latest Devices - (Smartphones, Tablets, Laptops, Computers, etc.) - Bluetooth Version: 4.2 - Bluetooth Network Name: 'Pyle Speaker' - Wireless Range: 40'+ Ft. What's in the Box: - Bluetooth Tube Amplifier - Power Cable - Remote Control Technical Specs: - Power Output: 500 Watts Peak Power - Power supply: AC 120V/240V - Remote Control Battery: Need 2x ’AAA’ Battery (not included) - Construction Material: Aluminium - Amplifier Chip: C5198/A1941 - Rated output power: 2*40W /4O - Audio input: RCA input +USB input+Bluetooth input - Audio output: 1 set of Banana Speaker Jacks - Signal to noise ratio:>75dB - Dimension (L x W x H): 13.78'' x 13.39'' x 8.46'' –inches