The FS01 is a single channel foot switch to control the transmit/receive function of an amateur radio transceiver, use the 3.5mm plug connects to work with Ailunce SM01. The 3.5mm to 6.35mm(1/4 Inch) adapter cable to work with HF transceiver.

$19.99

Price Difference Link

$8.80

HD1 SP/MIC protection cover

$2.99

$0.99