TRANSDUCER / CAPSULE
The K401 model has a K4m capsule, which is capable of reproducing frequencies between 60Hz and 16,000Hz, with a cardioid polar pattern that rejects off-axis sounds.
UHF TRANSMISSION
The K401 works with 48 possible frequencies between 560MHz - 590MHz | 615MHz - 698MHz, with 10mW of transmission power providing an average range of 30 meters (may vary according to region). Changing channels is done via a single button located on the TX (microphone).
TX power supply: 2 x AA 1.5V batteries (alkaline preferred)
RX display: Informs the user of the RF level, AF and frequency used.
TX display: Reports frequency and battery level.