Single stage FM Microphone and Transmitter 9V
Small enough to fit in a shirt pocket (even with its batteries) the FK702 uses a tiny condenser microphone which can be clipped to a lapel.
The design utilizes a resonant coil etched into the PCB which simplifies construction.
Operating Frequency 88mHz allows the unit to be picked up on a normal FM receiver up to 20metres away.
Power Supply: 9V DC
Current drain: 10mA max.
PCB Dimensions(mm): 41.66 X 27.94 X 15.24