portable microphone amplifier

Introduction:Color: Black & Red& Green (optional)Output power: RMS10W(maximum)Frequency response: 100HZ 13000HZ±1dbCurrent consumption: 150mA(minimum)Input signal: cable microphone (-20dB 600)The use of voltage: DC 7.5, lithium batteriesMaterial: ABS resin moldingSize: 90mm*70mm*27mmWeight: 190 g i.e. 0.41 lbsSpeaker sensitivity: -53dBV/Pa±3dBPackage Contents:Voice amplifier with Built-in Lithium Rechargeable Batteries.Microphone with headsetMale to Male 3.5mm audio patch cableBattery charging power adapter cableRemovable belt clipAdjustable waist belt.Convenient storage bagSparkle points:Usage time of 8-10 hours when fully charged.Long battery life.Large battery capacity: 1000mAhLoud and clear sound.Easy to use.Made of high impact strength ABS Plastic.Two input ports, one for a microphone and one for sound input from devices like a MP3 player. Both input ports can be used at the same time.