For On-Board Use
HS-94 Earphone Head Headset
HS-95 Behind-the-Head Headset
HS-97 Throat Microphone with: OPC-1392 Headset Adapter Cable
For VOX hands-free operation. Headsets are not waterproof.
HM-125 Speaker Microphone - full sized, submerisble construction, corresponds to IPX7 (1m depth/30 min.)