Features: - 4-Channel Receiver System - Powers Up to 4 Speakers - AM/FM Radio - Digital LCD Display - USB Flash Drive Reader - MP3 Digital Audio File Compatibility - Aux (3.5mm) Input Connector Jack - Ability to Connect External Devices - (iPhone, Android, Smartphone, iPad, Tablet, etc.) - (4) Pair Speaker Terminal Binding Posts - (2) 1/4'' Microphone Inputs - (2) Pair RCA (L/R) Audio Input Connector Jacks - (2) Pair RCA (L/R) Audio Output Connector Jacks - Connects to TV, Home Theaters, External Speaker Systems - Radio Station Auto Scan, Tuning Control - Built-in Ventilation Cooling Fan - 50 Radio Station Memory Pre-Sets - Main Volume/Balance/Treble/Bass Controls - Microphone Volume/Bass/Treble/Echo Controls What's in the Box: - Stereo Receiver - Remote Control - AM/FM Radio Antennas - Power Cable Technical Specs: - Power Output: 300 Watt MAX - Impedance: 4-16 Ohm - T.H.D.: 76dB - Tone Characteristics: +/-12dB - Input Sensitivity: 300mV/33k - Frequency Response: 40Hz-15kHz - Battery Operated Remote, Requires (2) x ‘AAA’, Not Included - Power Supply: 110/220V Switchable - Dimensions (L x W x H): 16.9'' x 12.2'' x 4.7'' -inches.