STARAUDIO Pro VHF Wireless 4 Channel Stage Church Karaoke Audio KTV Party PA DJ Microphone System SMV4000A High Quality Wireless VHF Receiver with Dual Anttennas,the metal housing is beautiful and durable Operating Range: 350 Feet ( 100 Meters) The VHF microphone is not easy to be interferenced. Reliable signal and no worried about the sound will be cut in and out during use. Individual Channel Volume Controls. 4 Pcs Wireless Dynamic Handheld or Headset Mic Our advantage: we are specialized in mcrophone system technology research and development for 9 years. If you buy this product now, you will get 24 month warranty