Shure P3TR112TW-G20 PSM300 Twinpack, Wireless In-Ear Monitor

The Shure PSM300 Twinpack (P3TR112TW-G20) is a professional wireless in-ear monitoring system designed to provide two performers with clear, reliable stereo mixes from a single half-rack transmitter. Operating on the G20 band (488–512 MHz) with 24 MHz of tuning bandwidth, the system offers enough frequency agility to coexist with other wireless gear on busy stages. The transmitter features a mix control that blends two audio inputs, and its rack-mountable form factor—complete with included brackets and hardware—makes it easy to integrate into existing stage or studio rack setups.

Each of the two included bodypack receivers delivers stereo audio to the supplied Shure SE112-GR sound-isolating earphones, which use balanced armature drivers to produce clear, detailed sound while blocking ambient stage noise. The receivers run on standard AA batteries, keeping power accessible anywhere. The package also includes a 1/4 wave antenna, BNC bulkhead adapter with 22-inch BNC cable, PS23 power supply, zippered carrying bag, and rubber feet for tabletop transmitter use—everything two performers need to start monitoring wirelessly right out of the box.