Features: - Adopts VHF technology, remote wireless transmission makes operation easier without annoying wires, can achieve 20-50m of the transmission distance. Broader frequency range, less interference, showing your voice easily and perfectly - Adopts the exacting complete electronic circuit control, capture rich, full-bodied sound from sources that are directly in front of the microphone. For all events like Karaoke, live-performances, conference, church, school, hall, party, etc. - Can used with 3.5mm and 6.35mm female interface devices. - USB receiver power supply by USB , powbank and more. - Suitable for studio / karaoke / radio / etc. - Suitable for teacher guides, sing, speech conference and etc. Specification: Model: V10 Material: Plastic + Metal Wireless receiving range: 20-50 meters Frequency: 261.8 MHZ Power supply: 2 x AA battery (not included) Operating temperature: -10 - 50℃ Scope of application: Universally used in various size speakers, amplifiers, power amplifiers, computers, SLR cameras, televisions and other equipment. Microphone Size: approx. 24x4cm Color: Black