Description Battery Powered PA System with DSP & Reverb Specifications - Details Amplifier - 2 Channels Class-D Amplifier with Flyback SMPS USB Charger - 5V / 1A charger for smart phone Output Power - 800W Peak ; 400W / 200W RMS LF - 12″ Woofer, 4Ω, 1.5″ VC, 32oz Magnet HF - 1″ Polymer Compression Tweeter Modes - Built in Modes (Normal, DJ, Live, Speech) Preseted DSP with 2 Microphones (16 DSP Effect Options) Battery - 12V 7Ah Lead-Acid Playback Time - 3–4 Hours(@max vol, rated power)