Sennheiser RI250
RI 250 Wideband Infrared Stethoset Receiver
The RI 250 wideband stethoset receiver operates on the new extremely reliable
carrier frequency of 2.3 MHz. It is fitted with an easy-to-use on/off/volume
control. The receiver is powered by the environmentally friendly BA 151 NiMH
rechargeable battery.
Features—Benefits
- Wideband stethoset receiver
- Excellent transmission reliability due to new carrier frequency (2.3
MHz)
- Extremely lightweight—only 1.44 oz including battery pack
- Very easy to use
- Excellent speech intelligibility and good music reproduction
- Environmentally friendly—operates on rechargeable NiMH battery pack
Technical Data
- Modulation - wideband FM, mono
- Carrier frequency - 2.3 MHz
- AF frequency response - 18–18,000 Hz
- THD - < 1 %
- Signal-to-noise ratio - typ. 70 dB
- Max. SPL - approx. 130 dB
- Audio output - 1/8" jack (0.7 V / 30 Ω) RI 250 J or S
- Operating time - approx. 6 h
- Weight - approx. 1.44 oz including battery pack