Experience reliable wireless audio monitoring with the Pyle PYIEM103 Wireless In-Ear Monitor System. Designed for stage performances, studios, churches, lectures, and other professional audio applications, the system operates using Uhf Pll technology with 220 selectable frequencies across 10 groups. It provides a wireless operating range of up to 164 feet and a 20 Hz to 20 kHz frequency response. The package includes a metal transmitter base station, bodypack receiver, earphones, antenna, rack bracket, power adapter, and Aa batteries. Xlr and 6.35mm connectivity provide flexible integration with mixers, amplifiers, wireless microphone systems, and other compatible audio equipment.