Icom IC-M73PLUS Professional Handheld Marine VHF Transciever|6W|700mW Audio|IPX7
PART NUMBER: M73PLUS. Icom IC-M73PLUS Professional Handheld Marine VHF Transciever?. 700mW Audio?IPX7. 700mW Loud Audio - The IC-M73PLUS uses a BTL (bridge-tied load) amplifier that doubles the audio output.