Pyle PS2/PS3/WII/XBOX360/PC Dual Wireless 2.4G Microphones Excellent for Monitor or Surround Sound Applications Each system has one 3.5'' Long Throw Woofer for deep bass and midrange sound, plus a 1'' High Compliance Mylar Tweeter for definitive high frequencies Handles up to 150-Watts RMS/300 Watts Peak external amplifier power Frequency Response - 60 Hz to 20,000Hz 8-Ohm Impedance