The IR SY1 small-area infrared assistive listening system provides a simple, effective solution for delivering clear, private audio in small spaces. Designed for assistive listening and personal TV audio, the system is ideal for hospital rooms, assisted living facilities, medical treatment centers, conference rooms, jury deliberation rooms, and other environments where secure, interference-free listening is essential. Its infrared transmission keeps audio contained within the room, providing privacy while eliminating RF interference.
At the heart of the system is the compact IR T1 infrared transmitter, which supports one- or two-channel operation on 2.3 MHz and 2.8 MHz frequencies. Installation is quick and easy with a standard 3.5 mm audio input, while power can be supplied using the included AC adapter or directly from a television's USB port. High-efficiency LED indicators provide clear visual confirmation of power and audio input status, making everyday operation straightforward and reliable.
The complete system includes everything needed for immediate use, including the WIR RX22-4N infrared receiver, folding headphones, transmitter mounting bracket, power supply, batteries, and all required connection cables. Providing dependable infrared coverage for areas up to 1,300 square feet, the IR SY1 offers an ideal turnkey solution for facilities seeking reliable, private assistive listening without complicated installation or setup.
| HED 021: | |
|---|---|
| Style | Mono, folding headphone |
| Plug | 3.5mm mono |
| Driver Size | 30 mm |
| Nominal Impedance | 32Ω |
| Frequency Response | 20 - 20kHz |
| Max Power Input | 100 mW |
| Sensitivity | 110 dB @ 1kHz |
| Replacement Pads | HED 023 (one pair) |
| Cord Length | 39" (990.6 mm) |
| Weight | 0.115 lbs (0.052 kg) |
| IR T1: | |
| Power Supply | TFP 055 - 100-240V AC 50/60Hz Input 5V DC, 1A USB Output, Universal Supply with international adapters Other USB Power Supply (must be at least 5V DC, 0.2A) |
| Power Cable | USB to micro USB cable |
| DC Power Input | Micro USB connector, 5V DC, 0.2A |
| Sleep/Power Save Mode | Shuts off carrier when no audio present for 12 minutes |
| Modulation | FM Wideband, ±50 kHz deviation max, 50 μS pre-emphasis |
| Carrier Frequencies | 2.3 MHz (Ch 1) and 2.8 MHz (Ch 2) Default at power on = carriers off Carriers are automatically enabled upon presence of audio |
| Coverage Area | 1,000 sq. ft (96 sq. m.) |
| Audio Inputs | 3.5 mm stereo line level input jack, Ch 1 connected to tip, Ch 2 connected to ring, GND connected to sleeve |
| Audio Indicators | One Yellow LED per channel, lights up and stays on steady with minimum audio level |
| Signal-to-Noise Ratio | 70 dB at onset of limiting |
| Frequency Response | 100 - 12,000 Hz |
| Operating Requirements | 32° - 122°F (0 - 50°C) |
| Mounting Kit | Optional: STD 008 TV Top Shelf Mounting Kit Optional: BKT 024 Omnidirectional mount for wall or ceiling mounting |
| Compatible Receivers | WIR RX22-4, WIR RX18 |
| STD 008: | |
| Shelf Support | Front padded lip rests on TV Adjustable arm with swivel lock supports rear of shelf |
| Dimensions (W x Dia) | 6" (152.4 mm) x 4.75" (120.65 mm) |
| Weight | 0.6 lbs (0.27 kg) |
| WIR RX22-4N: | |
| Receiver Style | Body-Pack, dual-lens detector, lanyard |
| Lanyard | 3 ft (0.91 m), allows receiver to be worn around the neck |
| Operating Temperature | -10° C to +50° C |
| Battery Type | 2 x AA, alkaline (BAT 001-2) or NiMH (BAT 026-2) |
| 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 |
| De-Emphasis | 50 uS |
| FM Deviation | ±50 kHz |
| Signal-to-Noise Ratio | 60 dB min. |
| Squelch | Receiver squelches (mutes) at 28 dB S/N ratio |
| Frequency Response | 25 Hz to 16 KHz, +1 dB, -3 dB, electrical response |
| Total Harmonic Distortion | Less than 1%, electrical response |
| Audio Output Jacks | 3.5 mm stereo mini phone jack Accepts 3.5 mm mono or stereo phone plug |
| Audio Output Power | 15 mW max at 32 Ω |
| Acoustic Output | 125 dB SSPL90 with HED 021; 110 dB SSPL90 w/ EAR 013 |
| Sensitivity | Better than 1 nW/cm2 for 40 dB signal-to-noise ratio |
| Dimensions (H x W x D) | 1.2" (30.48 mm) x 4.1" (104.14 mm) x 2.85" (72.39 mm) |
| Weight | 0.28 lbs (0.127 kg) |
Usually arrives in 5-9 business days.
Usually arrives in 5-9 business days.
Usually arrives in 5-9 business days.
Usually arrives in 5-9 business days.
Usually arrives in 5-9 business days.
Usually arrives in 5-9 business days.
