6-Channel Audio Amplifier Rugged & Durable Marine Grade Construction Bluetooth Receiver for Wireless Music Streaming Ability USB Flash & SD Memory Card Readers MP3 Digital Audio File Compatibility LCD Digital Display Screen RCA (L/R) Audio Connectors Spring-Loaded Speaker Terminals Connect & Stream Audio from External Devices Heavy Duty Aluminum Alloy Heatsink Side Panel Button Control Center Volume, Bass, Treble Rotary Controls Built-in Thermal, Overload & Speaker Short Protection Includes Wall Power Adapter Power ON/OFF Switch Bluetooth Wireless Connectivity: Works with All of Today’s Latest Devices Laptops, Computers, Smartphones, Tablets, etc. Smart Auto Connect Pairing Ability Bluetooth Version: 2.1 Bluetooth Network Name: Pyle Wireless Range: 50’+ ft. Technical Specs: MAX Power: 600 Watt (100W x 6) Amplifier Type: Class-D Circuit Marine Grade Rating: IP-41 Impedance: 4 Ohm Frequency Response : 10 - 40kHz Channel Separation : > 65dB T.H.D.: <1.0% S/N Ratio : > 95dB Maximum USB Flash Support: 32GB Digital Audio File Support: MP3, WMA, WAV Power: 110/220V (DC 12.5V Power Adapter) Dimensions (L x W x H): 11.8’’ x 9.8’’ x 2.1’’ Sold as: 1 Weight: 4.15 lbs. Pyle - PFMRA640BB - 6-Channel Amp: Amplifier with 600 watts power at 4 ohm impedance and frequency range between 10-40kHz for unrivaled sound superiority. Fully marine grade rating at IP-41, a class D circuit and RCA audio connector. Enjoy Built in bluetooth and that ranges up to 50’ + feet. Also,installed with HD sound and LED digital screen.??