100% Brand New.This dual wireless microphone set is designed to transmit high quality sound while remaining mobile and easy to use. These microphones easily plug into any system， provide crisp， clear sound， and are karaoke ready. Great for DJs， rehearsals， speeches， singers， and studios. These wireless microphones deliver quality while remaining lightweight and ultra portableWireless Receiver for Enhanced MobilityTwo Professional MicrophonesIdeal for Meetings， Events and KaraokeFrequency Range: FM121.7-128.7MHzFrequency Response: 100Hz-10000HzDynamic Range: 80dBService areas: 10mPower by: 9V Storey betteryRF outupower: 8mwPlug: US PlugColor: BlackReceiver power: AC 220V/50Hz， AC 110V/60HzAudio Output level: >25mVReceiver Size: 300(W)mm x 120(D)mm x 35(H)mmMicrophone size: 250mm x 5mm x 5mm2 X Microphone1X Service US plug1X cable