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Shure P3TR112TW-G20 PSM300 Twinpack, Wireless In-Ear Monitor — main product image
Shure P3TR112TW-G20 PSM300 Twinpack, Wireless In-Ear Monitor
Shure P3TR112TW-G20 PSM300 Twinpack, Wireless In-Ear Monitor
Shure P3TR112TW-G20 PSM300 Twinpack, Wireless In-Ear Monitor
Shure P3TR112TW-G20 PSM300 Twinpack, Wireless In-Ear Monitor
Shure P3TR112TW-G20 PSM300 Twinpack, Wireless In-Ear Monitor
Shure P3TR112TW-G20 PSM300 Twinpack, Wireless In-Ear Monitor
Shure

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

★★★★★4.6 (74 reviews)

Deliver crystal-clear stereo monitor mixes to two performers simultaneously with the Shure PSM300 Twinpack wireless in-ear system.

$1,199.00*
✓ In Stock on Amazon.com
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*Price sourced from Amazon.com. Last updated:Jun 27, 2026.Price and availability are subject to change.

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Overview

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.

Key Features

The ideal monitoring solution for up to two performers

Perfect for Musicians

Target consumer: musicians

Specifications

Model
P3TR112TW-G20
System Type
Wireless In-Ear Monitor (Twinpack)
Frequency Band
G20 (488–512 MHz)
Tuning Bandwidth
24 MHz
Included Earphones
2x Shure SE112-GR Sound-Isolating
Audio Driver Type
Balanced Armature
Connectivity
RF Wireless
Bodypack Receiver Power
2x AA Alkaline Batteries (each)
Noise Control
Sound Isolation
Package Weight
6.38 lbs
Material
Plastic
Color
Black
Ear Placement
In Ear
Included Components
Transmitter, 2x Bodypack Receivers, 2x SE112-GR Earphones, Rack Mount Brackets, Hardware Kit, 1/4 Wave Antenna, BNC Bulkhead Adapter, 22" BNC Cable, PS23 Power Supply, Rubber Feet, 4x AA Batteries, Zippered Bag

Pros & Cons

👍 Pros

  • Complete two-user monitoring solution in a single package eliminates the need to buy separate components
  • 24 MHz tuning bandwidth across the G20 band provides flexibility to find clean frequencies in crowded RF environments
  • Sound-isolating SE112 earphones reduce stage noise so performers can hear their mix at lower, safer volumes
  • Transmitter includes both 1/4 wave antenna and BNC bulkhead adapter for versatile installation options
  • Rack-mountable design with included brackets keeps stage and rack setups organized

👎 Cons

  • G20 frequency band (488–512 MHz) may have limited availability depending on local RF regulations and spectrum use
  • Included SE112 earphones are entry-level and may not satisfy performers who need higher-fidelity monitoring
  • Bodypack receivers rely on disposable AA batteries rather than built-in rechargeable cells
  • Both receivers share a single transmitter mix, offering no independent mix control per performer without additional hardware
  • At over six pounds total package weight, the full system adds noticeable bulk to portable rigs

Frequently Asked Questions

This model operates on the G20 band, covering 488–512 MHz with a 24 MHz tuning bandwidth.
The Twinpack includes two bodypack receivers and two pairs of SE112 earphones, so two performers can monitor simultaneously from a single transmitter.
It ships with two pairs of Shure SE112-GR sound-isolating earphones featuring balanced armature drivers.
Each bodypack receiver runs on two AA alkaline batteries, and four AA batteries are included in the box.
Yes, rack mount brackets and a hardware kit are included for standard 19-inch rack installation.

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