Installation guide

18
INFRARED RECEIVER, MODEL WIR RX4 (OPTIONAL)
Weight: 5.4 oz (154 g) with batteries
Earpad Size: 6.5 cm (2.5") diameter, adjustable headband, uses HED 023 foam
cushions
Material and Color: ABS plastic, Textured Gray
Battery Type, Life: 2 - AAA Alkaline, 40 hours
Modulation Frequency: 95 kHz FM, 50 µS de-emphasis
Deviation: ± 50 kHz
Frequency Response: 200 Hz to 8 kHz, ± 5 dB
Signal-to-Noise Ratio: 60 dB at 4 m
Controls: On/Off slide switch, volume control wheel
Acoustic Output: 110 dB MAX SSPL90, 100 dB HF AVG SSPL90 with 2 cc coupler
Compatability: Compatible with most wide-band 95kHz IR Transmitters
Speakers: Moving coil type. Compatible with telecoil-equipped hearing aids
Warranty: 5 years (excludes microphones, headphones, batteries and chargers)