Blaupunkt IVMR-7001 - Manual (Page 14)

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4. For stereo audio, move the switch
to the stereo position. Move the
switch to the mono position for
mono audio/video devices.
IR-HEADPHONES
5. Reception position
The headphones/receiver receive
audio signals within certain ranges
from any direction and directly.
You will enjoy the best reception
if you stay within a distance of
5 metres from the transmitter.
Specifications
Surround transmitter:
Power consumption
Effective angle
Weight
Stereo headphones:
Type
Transducer system
Impedance
Frequency response
Sound intensity level
Distortion
Infrared wavelength
Modulation
Carrier frequency
Power supply
Battery operating time
(at 10 mV output power)
Weight
Range
12 V DC 200 mA
120 degrees
approx. 55 g
dynamic, open
40 mm Mylar membrane
32 ohm +/- 6.4 ohm
20 Hz – 23 KHz
98 dB/rated deviation
1 % total harmonic distortion
at rated deviation
845 mm +/- 5 mm
high frequency modulation
right 2.8 MHz, left 2.3 MHz
2 DCV (1.5 V AAA x 2)
approx. 48 hours
approx. 170 g (without batteries)
approx. 7 metres