Shure

Shure P3TR112GR-G20 PSM300 Wireless In-Ear Monitor

Shure PSM300 delivers artifact-free 24-bit wireless monitoring with mix control for every position on stage.

$799.00*$829.00Save 3%
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*Price sourced from Amazon.com. Last updated:Aug 28, 2026.Price and availability are subject to change — details.

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Overview

The Shure PSM300 P3TR112GR-G20 is built for performers and audio engineers who need dependable wireless in-ear monitoring without the complexity and cost of flagship systems. Its 24-bit digital audio path, paired with Shure's patented Audio Reference Companding, delivers a monitor signal with remarkably low noise and faithful transient reproduction — you hear pick attacks, vocal dynamics, and kick drum punch without the mushy compression artifacts that plague lesser wireless systems. Mix Mode is genuinely useful on stage, letting you ride the balance between your own channel and the house mix with a single thumb wheel, which means fewer frantic hand signals to the monitor engineer mid-set. Operating in the G20 band (488–512 MHz), the system finds clean frequencies quickly through one-touch scanning, though the narrower bandwidth means careful coordination is necessary in multi-system deployments.

Build quality is functional rather than premium — the P3T half-rack transmitter is straightforward to rack-mount and integrates cleanly via XLR and quarter-inch inputs, while the P3R bodypack is lightweight plastic that clips securely but won't inspire the same confidence as a metal-bodied unit after repeated drops on concrete stages. The included SE112 earphones deliver adequate isolation and a warm low-mid presence that works for basic monitoring, but they're the weakest link in the signal chain; stepping up to SE215 or SE425 earphones reveals what the PSM300's audio processing is truly capable of. For working bands, worship teams, and small-venue performers who need clean wireless monitoring that sets up fast and sounds honest, the PSM300 is a proven workhorse that punches well above its entry-level positioning.

Key Features

Featuring SE112 Sound Isolating Earphones, P3TR112GR provides great sound and simple setup for entry-level users

The P3TR112GR is part of the PSM300 wireless systems family

PSM300 Stereo Personal Monitor Systems deliver reliable wireless freedom to every corner of the stage; patented Audio Reference Commanding ensures the clearest sound, with ultra-low noise and no artifacts

Easy to setup and operate, PSM300 systems offer one-touch frequency scan and sync to find and assign a clean wireless channel; adjust the volume and use Mix Mode technology or stereo mode to create a personal mix from two channels of audio

Includes P3R, P3T, SE112, rack mount and hardware kits, 1/4 wave antenna, BNC bulkhead adapter, BNC cable, power supply, 2 AA batteries, zipper bag, and user guide

Specifications

Earphones
SE112 Sound Isolating Earphones
Frequency Band
G20 (488–512 MHz)
Audio Driver
Dynamic Driver
Impedance
16 Ohm
Technology
Wireless RF
Noise Control
Sound Isolation
Power Source
2 AA Batteries (included)
Material
Plastic
Color
Black/Gray
Included
P3R Receiver, P3T Transmitter, SE112 Earphones, Rack Mount and Hardware Kits, 1/4 Wave Antenna, BNC Bulkhead Adapter, BNC Cable, Power Supply, 2 AA Batteries, Zipper Bag, User Guide

Frequently Asked Questions

Audio Reference Companding is Shure's patented processing that maintains the full dynamic range of the 24-bit audio signal across the wireless link, virtually eliminating the noise floor pumping and transient smearing common in conventional companding systems. You hear the mix as the engineer sent it.
The G20 band operates within 488–512 MHz, and the one-touch frequency scan identifies open channels within that range. You can run multiple systems simultaneously, though the G20 band's relatively narrow 24 MHz window limits the number of compatible channels compared to wider-band Shure systems.
The P3R receiver is designed specifically for use with PSM300 series transmitters and is not cross-compatible with PSM900 or PSM1000 transmitters. It pairs exclusively with the P3T within the same frequency band.
Mix Mode lets you blend two discrete audio channels — typically your vocal and the full band mix — using a single knob on the bodypack, giving you real-time control of your personal balance on stage. Stereo mode passes a true stereo signal for applications like broadcast monitoring or click-track isolation where spatial imaging matters more than individual mix control.
The P3R runs on two AA alkaline batteries and delivers approximately 5–6 hours of continuous use under typical stage conditions. Lithium AAs can extend that window for longer festival sets.