Williams Sound WIR SYS 75P PRO Infrared Jury Deliberation Room System

Williams Sound WIR SYS 75P PRO Infrared Jury Deliberation Room System

Williams Sound WIR SYS 75P PRO Infrared Jury Deliberation Room System

Williams Sound WIR SYS 75P PRO Infrared Jury Deliberation Room System

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Important Notice: This item is non-cancelable and non-returnable
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Expected availability: 7-10 business days 
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Product Highlights

  • For Audio Description, Music, Theater
  • Two-Channel Infrared Transmitter
  • Modulator and Emitter
  • Balanced or Unbalanced Line Level
  • 2.3 to 3.8 MHz Frequencies
  • LED Status Indicators
  • Includes Carry Case
  • No FCC License Required
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Official Rules


NO PURCHASE IS NECESSARY TO ENTER OR WIN. The B&H $1,000.00 Giveaway (the "Giveaway" or "Sweepstakes") is void where prohibited by law and is sponsored by B&H Foto & Electronics Corp., 440 Ninth Avenue, New York, NY 10001 ("Sponsor"). It is not sponsored or endorsed by Facebook or Twitter in any way.

Entry Period/Methods of Entry. The Sweepstakes will run from on or about November 7, 2016 until on or about December 19, 2016 (the "Entry Period"). Entries received outside the Entry Period are void. Enter the Sweepstakes via either one of the following methods. (1) Share your most wanted item on Facebook or Twitter via the dedicated links found on the B&H Website (www.bhphoto.com); or (2) Mail a postcard (postmarked during the Entry Period) containing your name, address, phone number, and email address, and indicate the subject(s), if any, about which you are interested in receiving future emails from B&H (e.g. photo, video, audio, computers, home theater, portable entertainment ) (optional) to: B&H $1,000.00 Giveaway, c/o B&H Foto & Electronics Corp., 440 Ninth Avenue, New York, NY 10001 (either option, an "Entry"). Entries must not, in the sole and absolute discretion of the Sponsor, contain obscene, provocative, defamatory, sexually explicit, or otherwise objectionable or inappropriate content. Entries deemed by Sponsor to be inappropriate will be disqualified. Entries owned by a third party, or the use of any trademarks, service marks, logos, brands, or products owned by a third-party are not acceptable for entry into the Sweepstakes. Limit 1 entry per person, per day.

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Limitation of Liability/Sponsor Modification/Cancellation Rights/ Choice of Law/ Venue/ Winners List. Sponsor is not responsible for incomplete entries or for failure to receive entries due to technical failures or human error of any kind. Winners agree that Sponsor will have no responsibility for losses or damage of any kind resulting from the acceptance, possession, or use of the prizes. Except where prohibited, participation in the Sweepstakes constitutes entrant's consent to the publication of his or her name by Sponsor in any media for commercial or promotional purposes without limitation or further compensation subject to Sponsor's respective Privacy Policies. Sponsor may modify or discontinue the Sweepstakes at any time and may disqualify from the Sweepstakes any person it determines, in its sole discretion, to have attempted to or actually tampered with or otherwise abused any aspect of the Sweepstakes. Entrants agree that in the unlikely event a dispute arises in connection with this Sweepstakes, it will be governed by the laws of the State of New York and heard exclusively in a court of applicable jurisdiction in the County and State of New York irrespective of any choice of law provisions to the contrary. To receive names of the winners by U.S. mail, please mail a self-addressed stamped envelope to: B&H Foto & Electronics Corp., Attn: B&H $1,000.00 Giveaway, 440 Ninth Avenue, New York, NY 10001. Any Winners List request must be received by B&H within one (1) year of the date the Sweepstakes is conducted.

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  • 1Description

The WIR SYS 75P PRO Infrared Jury Deliberation Room System by Williams Sound is a two-channel professional infrared transmitter combining an infrared modulator and an emitter into a single mountable enclosure. It can be used for applications in various environments for high-quality audio programs such as music, theater and audio description. The WIR SYS 75P transmitter will accept any line level with balanced or unbalanced audio inputs. Infrared receivers detect the transmission and convert the light signals back into audio signals. The WIR SYS 75P operates on frequencies of 2.3 to 3.8MHz and minimizes high-efficiency lighting interference. LED status indicators can be turned off after the initial setup. No FCC license or radio approval is required with this equipment.

Meets ADA compliance for jury deliberation rooms
Comes as a complete system with a carrying case
Master unit has troubleshooting lights built in
Separate Phoenix contact connector audio inputs for each channel (2.3 to 3.8 MHz)
Accepts balanced or unbalanced line level inputs, and can be used together for stereo operation or separately for mono
Unit senses if only one channel is in use and doubles the output power on that channel for twice the coverage
If no audio is present after a few minutes, unit automatically disables power to IR diodes, reducing power consumption by 80 percent
Table of Contents
  • 1Description
Battery Alkaline, 1.2 V
Type Around-ear speaker
Jack 1/8" (3.5 mm) mono
Cable Length 39" (99 cm)
Driver Size 0.91" (23 mm)
Nominal Impedance 32 ohms
Frequency Response 20 Hz to 20 kHz
Power Input Max: 30 mW
Sensitivity 118 dB @ 1 kHz
Wall Plate
Dimensions (L x W x H) 10.38 x 6.25 x 0.13" (264 x 159 x 3.30 mm)
Plug 1/8" (3.5 mm) mono
Cord 36" (914 mm)
Phantom Power No
Nominal Impedance 1500 ohms
Operating Voltage 1.2 - 10 VDC
Frequency Response 100 Hz to 8 kHz
Pick-up Pattern Omni
Transducer Type Electret condenser
Sensitivity -38 dB ± 3 dB
Style Body-Pack, dual-lens detector, lanyard
Lanyard 3" (.91 m); allows receiver to be worn around the neck
Operating Temperature (-10 to 50°C) 14 to 122°F
Battery Type 2 x AA, alkaline (BAT 001) or NiMH (BAT 026)
Battery Life Alkaline: 60 hours
NiMH: 30 hours/charge
Battery Drain 25 mA, nominal
Charging Contacts: For use only with CHG 3512
Carrier Frequency Channel 1: 2.3 MHz
Channel 2: 2.8 MHz
Channel 3: 3.3 MHz
Channel 4: 3.8 MHz
Packaging Info
Package Weight 9.21 lb
Box Dimensions (LxWxH) 18.25 x 14.125 x 7.0"

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