USB Flash Drive & SD Memory Card Readers, FM Radio with LED Digital Display, Aux (3.5mm) Input, Desktop Audio Mini Power Amplifier, Compact Home Theater-Stereo Receiver Style, Built-in Bluetooth for Wireless Music Streaming, Phono Inputs, Optical/Coaxial Digital Signal Inputs, Multi-Channel Audio Input Selection, MP3/WAV Audio Files Support, Connect & Stream Audio from External Devices, (2) 1/4'' Microphone Input Jacks, (2) Pairs RCA (L/R) Audio Input Connectors, (2) Pairs Banana Plug Speaker Output Connectors, (1) Pair RCA (L/R) Audio Output Connectors, (1) 1/4'' Headphone Output Jacks, Mic Talk-over Ability to Speak Over Audio, Karaoke Style, Front Panel Audio Control Center, Radio Station Auto-Search Scan, 'Repeat Audio File Functions, Treble, Bass, Master & Microphone Volume Adjustable, 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: 'PDA4BU', Wireless Range: 40'+ Ft., Desktop Stereo Amplifier, Remote Control, FM Antenna, LED Screen Size: 3.3'' x 1'', Remote Control Battery: 3V Lithium Cell (CR2025) Included, MAX Power Output: 25 Watt (@ 4 Ohm), RMS Power Output: 20 Watt x 2 (@ 8 Ohm), Tone Control: Bass, f=100Hz +/-12dB, Treble, f=10 KHz +/-12dB, Tone Control for Mic: Bass, f=100Hz +/-8dB, Treble, f=10 KHz +/-8dB, Frequency Adjustment: +/-2dB, Signal to Noise Ratio: >71dB, T.H.D.: 48dB, Power Supply: 115V/230V, Switchable, Dimensions (L x W x H): 10.2'' x 9.8'' x 2.8'' -inches, Weight: 6.62 lbs.