This 40 watt power amplifier provides the juice you need for your 25 V or 70 V PA speaker. The three ¼ jack inputs are conveniently located on the front - two mic inputs and one auxillary input. Mic 1 has an auto-talkover so you can easily cancel the other inputs. Each input has an independent gain control and you can also adjust the tone of the sound using the rotary treble and bass faders. Connect your speakers using the rear terminals. Includes a replaceable fuse and detachable AC power input. Runs on 110 or 220 V. DETAILSFeatures: Compact Power Amplifier Design Automatic Mic-Talkover Priority Function (Mic 1) (2) 1/4 Microphone Inputs Aux (1/4) Input Connector Jack Ability to Connect External Devices Speaker Terminal Outputs: COM/8-Ohm/25V/70V Independent Microphone/Aux Volume Controls Connect up to (4) Speakers Speaker Transformer Compatibility Bass and Treble Tone Controls Power ON/OFF Switch & LED Indicator Includes Detachable AC Power Cable Convenient Audio Control Amp USB/SD/FM/Bluetooth Playing Blue LED Display for Playing Information Extend Bluetooth Antenna Bluetooth Connectivity: Instantly Stream Music from Your Bluetooth Devices Works with All Your Favorite Bluetooth Devices (iPhone Android Smartphone iPad Tablet PC etc.) Bluetooth Network Name: PYLEUSA’ Bluetooth Version: 4.0 Bluetooth Wireless Range: 30+ Feet What’s In The Box: PA Amplifier FM Antenna Remote control Technical Specs: MAX Power Output: 40 Watt Construction Material: Iron Treble/Bass: +/-10dB 100-10kHz Frequency Response: 50-15kHz Attenuation (Mic): 61dB T.H.D.: