FL-100 CW/FSK Narrow Filter - have good shape factor to provide better CW/RTTY reception. Bandwidth: 500Hz/-6dB
HS-50 Handset - provides clear audio reception and comes in handy for listening privacy.
HM-180 Hand Microphone - dynamic microphone with IPX7 waterproof protection. (same as supplied)
UT-95 2 Tone Alarm Unit - provide the alarm function (already built into the Marine version)