Sennheiser Electronic Corp RR2000 사용자 설명서

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Specifications
RS 2000  
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Specifications
RS 2000 system
RR 2000 stethoset receiver 
TR 2000 transmitter 
Carrier frequency
2.40 to 2.48 GHz
Modulation
8-FSK Digital
Signal-to-noise ratio
typ. 85 dBA at 1 V
rms
RF output power
max. 10 dBm Class 1
Audio latency
< 60 ms
Range
up to 50 m/328 ft line of sight
Number of stethoset receiv-
ers that can be simultane-
ously connected to the trans-
mitter
4
Temperature range
operation: 5 °C to +40 °C
storage: -25 °C to +70 °C
Relative air humidity 
(non-condensing)
operation: 10 to 80 %
storage: 10 to 90 %
Type
intra-aural, closed
Transducer principle
dynamic, neodymium magnets
Ear pad material
silicone
Frequency response
15 Hz to 15 kHz
Sound pressure level
125 dB at 1 kHz, 1 V
rms
THD
< 0.5 % at 1 kHz, 100 dB SPL
Operating time
up to 9 hours
Charging time of 
rechargeable battery
up to 3 hours
Power supply
built-in lithium polymer recharge-
able battery, 3.7 V, 350 mAh
Weight 
(incl. rechargeable battery)
approx. 60 g
Dimensions 
(switched off, W x H x D)
approx. 102 x 265 x 23 mm
Audio connection
3.5 mm jack socket
input voltage range: 
0.15 to 4.0 V
pk
Power supply
5 V 
, 1 A
Power consumption
operation: typ. 4 W
standby: 

0.5 W (without 
charging)
Dimensions (W x H x D)
approx. 50 x 42 x 270 mm