The FM R37 features seek-button channel selection with access to 17 pre-set, wideband frequencies (72 - 76 MHz). Offers sleep mode, low-battery indicator, and stereo headphone jack. Compatible with all Williams Sound 72 - 76 MHz wide-band transmitters. Digitally synthesized for exceptional audio clarity and stability. Versatile 3.5mm stereo/mono jack allows for a variety of earphone/headphone options and is neckloop/telecoil-equipped hearing aid compatible.
| Battery Type | (2) AA Alkaline or 2 x AA NiMH |
|---|---|
| Battery Life | (2) AA non-rechargeable alkaline batteries (BAT 001), approx. 50 hrs (2) AA rechargeable NiMH batteries (BAT 026), 1500 mAh, approx. 32 hrs |
| Current Consumption | 52mA nominal |
| Temperature Range | – 0 to 50C |
| Channels | 17, accessed via seek button in battery compartment |
| Operating Frequency | 72.1, 72.2, 72.3, 72.4, 72.5, 72.6, 72.7, 72.8, 72.9, 74.7, 75.3, 75.4, 75.5, 75.6, 75.7, 75.8, 75.9 MHz |
| Intermediate Frequency | 75 kHz |
| FM Deviation | 75 kHz |
| De-Emphasis | 75 µS |
| LED Indicator | Power: Green Low Battery: Flashes Green |
| AFC Range | ± 120 kHz |
| Sensitivity | 2 µV at 12 dB Sinad with squelch defeated |
| Input Overload | 100 mV |
| Frequency Response | 200 - 15 kHz |
| Modulation | FM, +/- 75 kHz peak deviation |
| Signal-to-Noise Ratio | 65 dB min @ 100 uV |
| Receive Antenna | Integral with earphone/headphone cord |
| Audio Output | 35 mW max, peak into 16 ohms |
| Output Connector | 3.5 mm stereo/mono phone jack |
| Earphone | Earbud-type with foam cushion, 3.5 mm plug, 32 Ω |
| Auto Shut-off | Enters sleep mode after approx 6 mins of no RF signal |
| Dimensions (H x W x D) | 4.1" (104.14 mm) x 2.85" (72.39 mm) x 1.38" (35.052 mm) |
| Weight | 0.287 lbs (0.13 kg) with batteries 0.161 lbs (0.073 kg) without batteries |
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.
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.
