Electro-Voice R300 wireless mic system - Lapel features EZsync - which uses infrared technology to set the transmitter to the correct frequency, confirming operation in one automatic step! Unique features like One-Touch ClearScanTM and EZsyncTM make the R300 quicker and easier to set up and use than any other similarly priced wireless system, while its rack-mountable metal receiver, sturdy metal bodypack and handheld transmitters, and remote-mountable antennas are of a build and performance quality usually reserved for the highest-end professional products. This combination of value, professional features, and ruggedness make the R300 a perfect choice for a wide range of wireless applications, from live vocals and instruments to your sermon or special event.