... "woofer,horn tweeter 4.RMS power: 300W pa system TV-15DBuilt-in MP3 player and DVD playerUSB,SD ... with Dual channels UHF or VHF fix frequency wireless system optional (UHF have 50 to 70 wireless transmission distance ... memory card,MP3,MP47.Built-in advanced receiver modular system with two wireless mics (handheld ,lavalier ,and clip type optional ... wirelessDimensions 430X400X800mmN.W.37KG TV-15D Pa system