Model: ST-3215
 Specifications
 > Output power: 500Wx2
 > Frequency response: 20Hz-20KHz
 > Distortion: <0.01%
 >Impedance: 8 Ω
 > Dual transmitter, dual receiver, wireless microphone
 > With USB, SD, MMC card function, radio, digital display, remote control function
 >Input signal: MIC 20mV (600Ω) LINE IN 600mV (1KΩ)
 >Output signal: LINE OUT 1.0V (1K Ω)
 > Power supply: AC 200~240V 50-60Hz
 > Speakers: 15-inch woofer x2, horn tweeter
 > Box material: wooden board
 > Dimensions (HxWxD): 1160×450×420mm
 > Weight: 25kg