TONOR Wireless Microphone, UHF Dual Cordless Metal Dynamic Mic System with Rechargeable Receiver, for Karaoke Singing, Wedding, DJ, Party, Speech, Church, Class Use, 200ft (TW-630)

Wireless Freedom: 200ft operating range (line of sight) to freely move around during performances, suitable for indoor and outdoor activities, such as home karaoke, church, wedding, conference, speech and small stage performance.
Compatibility: Superior signal stability, compatible with karaoke machine, powered speaker, amplifier, mixer, audio interface. (NOTE: the system is not compatible with phones, computers and tablets.)
Stable Signal: Just turn on the system, then the receiver will sync the frequency with the transmitter automatically. 15 adjustable channels to get rid of radio interference, up to 15 sets can be used simultaneously.