Product Overview

The Williams AV PPA R37 HD packages the proven R37 FM assistive listening receiver with a HED 021 folding mono headphone and AA batteries, ready for immediate deployment. Operating across 17 preset wideband channels in the 72-76 MHz band reserved for hearing assistance by the ADA, the receiver pairs with any Williams Sound wideband FM transmitter, making it a straightforward choice for venues, training rooms, and classrooms that prefer over-ear headphones to earbuds.

Product Description

The R37’s digitally synthesized tuning delivers stable, clear audio, and a seek button inside the battery compartment steps through all 17 preset frequencies. Channel-lock capability keeps the receiver on the house frequency so guests cannot accidentally retune it, while a combination volume/power dial and green LED status indicator keep operation intuitive for any listener.

The included HED 021 folding headphone provides a 30 mm driver in a comfortable on-ear format that is easy to sanitize and reissue between events a practical advantage for venue receiver fleets. The 3.5 mm stereo/mono jack also accepts earbuds and neckloops, so telecoil-equipped hearing aid users can couple directly to the broadcast in support of ADA assistive listening compliance. The receiver runs up to 50 hours on two AA alkaline batteries, enters a battery-saving sleep mode after about six minutes without an RF signal, and is rechargeable-ready via an internal battery switch and contacts for Williams Sound drop-in chargers.

Need a transmitter or additional receivers? Pair the R37 HD with the PPA T27 compact FM transmitter or browse the full Williams AV collection at Creation Networks.

Key Features

• Folding Headphone Included The HED 021 mono headphone with 30 mm driver offers comfortable over-ear listening that is easy to clean and reissue.
• 17-Channel Seek-Button Tuning Access all 17 preset wideband frequencies in the 72-76 MHz hearing assistance band.
• Universal Transmitter Compatibility Works with all Williams Sound 72-76 MHz wideband FM transmitters for simple system expansion.
• Channel-Lock Capability Lock the receiver to the venue channel to prevent accidental retuning by listeners.
• Hearing Aid Compatible Output The 3.5 mm stereo/mono jack supports neckloops for telecoil-equipped hearing aids.
• Up to 50 Hours Battery Life Two AA alkaline batteries deliver approximately 50 hours of operation, with a low-battery indicator.
• Battery-Saving Sleep Mode The receiver sleeps after about six minutes with no RF signal, extending battery life between events.
• Rechargeable Ready Bottom charging contacts and a battery-type switch support NiMH operation with CHG 3502 or CHG 3512 drop-in chargers.

Technical Specifications