Wireless Handheld VHF Microphone Pro V10 With USB Receiver Karaoke Microphone : Adopts VHF technology, remote wireless transmission makes it easy to operate without annoying wires, can reach 80m transmission distance Wider frequency range, less interference, easily and perfectly showing your voice Adopts full control of electronic circuits, captures , full sound from sources located directly in front of the microphone Can be used with devices with female interface 3,5mm ,35mm USB receiver power supply via USB charger, mobile power supply For all events like karaoke, live performances, conferences, church, school, , party, etc Specification: Material: plastic metal Microphone Size: . 25x5cm Audio Length: . 60cm USB receiver size: 8x2,5 cm VHF frequency range: 200 MHz-270 MHz Sound transmission: 40Hz-15 Sound Dynamic Range: andgt 100dB Audio Output: 0-200mv Pick-up distance: 80 M Transmitter operating current: