Features: 2,000 Watts peak power Built-in rechargeable battery offers 5 hours of continuous music playing ABS Plastic Face & Rugged perforated steel grill for extra protection Woofer: 12'' LED woofer, 1 voice coil, 40 oz. magnet LED Power Switch Piezo Tweeter Inputs: USB flash drive, SD Card, Aux, and Bluetooth Car 12v Input 1/4'' microphone input with separate microphone volume control Built in LCD screen with playback controls USB & SD Card maximum size: 16GB Plays.mp3 &.wav files from USB drives and SD Cards Microphone records.wav files onto USB Flash Drive / SD Card Bluetooth compatibility allows for wireless connection to any A2DP stereo Bluetooth device Bluetooth Range: 30 Feet Echo & Volume controls Top & Side carry handles Includes wheels and telescoping carry-on handle Pole Mount Repeat function on USB / SD Card inputs Impedance: 8 ohms Sensitivity: 95 ±2dB (1W@1M) Frequency response: 40Hz - 20KHz For maximum battery life the rechargeable battery should be fully charged p