1.2 Functions and features
1. Original dirATC - digital infrared wireless
transmission and control technology
2. Audio clarity
Digital infrared microphone for the teacher enables
excellent audio quality:
Full channel frequency response: 50 Hz to 20 kHz
SNR: > 85 dBA
THD: <0.06 %
3. Zero RF radiation, green and healthy
No radio frequency radiation
Free from harmful health effects
Great immunity to interferences
4. Easy manageability
used in different classrooms without channel
matching. Switch on and talk, easy and convenient
Infrared microphones exclusive for each lecturer,
which is more convenient and hygienic
5. Immunity to interference
No crosstalk and interference between classrooms
when their systems are used at the same time
Neither radio interference inherent to radio
wave-based wireless communications nor radio
radiation
Insusceptible to interferences from HF-driven
lighting and works perfectly in sunlight
6. USB Link function
Digital audio input/output:
Lossless recording of digital audio signals via
USB
Lossless import of streaming audio into the
system
Power point slide navigation on the digital IR
wireless microphone
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