The best-sounding, most powerful portable P.A. system on the market. Absolutely unequaled in its ability to combine peak power and excellent voice and music clarity. Handles groups of 100 people up to crowds of 4,000. True AC operation when plugged into an outlet means the built-in battery is not used and continues to be charged when the unit is in use. Other sound systems continue to use the battery while the unit is plugged in, not allowing the battery to charge or retain its charge while in use. The UHF True Diversity wireless microphone systems ensure the highest signal strength with less dropout and interference than VHF. Built-in CD player with Shockmount reduces skipping caused by vibrations produced during high volume playback. Five (5) inputs and three (3) outputs allow the Sound Machine to be the most flexible and versatile portable sound system available for producing, recording and mixing sound. 3-year limited warranty on unit, 1-year on battery and CD player. Manufactured exclusively for Director's Showcase to serve the marching band industry. Unit includes: 2 wireless channels, 2 body-pack transmitters, 2 microphones (your choice of 2 headset, 2 lapel or 1 of each), CD player with Shockmount and a battery charger. Technical specifications Watts 200, Bi-amplified Receiver Wireless: UHF True Diversity Equalizer Three (3) band ("Low", "Mid" and "High") Woofer 10" Sound Modes 2 ("Loud" or "Normal" using VoicePower switch) Max SPL 125 dB (loud mode) 118 dB (normal mode) AC/DC Operation Both AC and DC Charging System When plugged in, switches to AC and charges battery Battery Level Indicators 100%, 60%, 30% Inputs - Line Level 3 (1/4", XLR and Dual RCA) Outputs - Line Level 3 (1/4", XLR and Dual RCA) Balanced Mic Inputs 2 (both XLR) Coverage Pattern for High Frequency Driver 60 degrees (vertical) x 90 degrees (horizontal) Crossover 4th Order Active, Linkwitz-Riley Crossover Point 1.5 kHz Case One piece Rubber Feet Yes Options Built-in CD player with Shockmount