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these systems are also applicable to simultaneous interpretation of international conferences or business conferences.
main
customers of these systems are all over china, vietnam, pakistan, bangladesh
and other asian countries. most ielts test sites in china use our systems as
test equipment. many colleges and universities have also adopted our systems
for foreign language teaching.
application
scenarios
foreign language listening study and exam in schools
or college.
for ielts and toefl listening exam.
simultaneous interpretation of international
conferences or business meetings.
features
1.
wireless headset adopts high-power infrared transmission, covering an area of
100 square meters; it can be extended to 200 square meters through synchronous
series connection of transmitter.
2.
the headset has strong anti-interference ability to ensure clear reception and
confidentiality for exam or business conferences.
3.
one to n functions: within effective range, one transmitter can match multiple
headsets and receive audio signal simultaneously.
4.
two channel system can switch channels through a button on the headset, and can
be used in bilingual teaching, bilingual simultaneous interpretation.
specifications
system:
infrared (ir)
carrier
frequency: left channel 2.3mhz
right
channel 2.8mhz
modulation:
fm
power
supply transmitter: 1.5a, 24v dc
power
supply headphone: 2 x aaa batteries
frequency
response: 40hz – 7 khz
s/n
ratio: 50db
distortion:
1% thd
channel
separation: 40db
weight:
approx. 210 g (for rx)
sound
pressure level: 95db