DSP6626A UHF Pocket Type Wireless Transmitter

Infrared   frequency distance: data can be transmitted within the range of
1-3m (open with no obstacles), and the receiver and the wireless
microphone transmitter stay still. Multiple transmission modes such as
point-to-point and point-to-multipoint are supported, and unlimited
number of receiving terminals is supported. After one frequency matching is
finished, match other frequencies one by one.
2.   After the frequency matching is successfully finished, the working frequency
system of the wireless receiver and the digital clip-on transmitter
automatically and randomly takes samples from the analog signal of
working