Standard Horizon SCU-38 Passive GPS Antenna [SCU-38]
Standard Horizon SMA to BNC adapter [CN-3]
Standard Horizon SSM-21A Speaker Mic f/HX890, HX400, HX400IS, HX380, HX40 HX210 [SSM-21A]
Standard Horizon SSM-517A Earpiece Microphone f/HX270, HX370, HX471 HX400 [SSM-517A]
Standard Horizon SSM-64A VOX Headset [SSM-64A]
Standard Horizon SU-1 Barometric Sensor f/HX471S [SU-1]
Standard Horizon Submersible Speaker Microphone [MH-73A4B]
Standard Horizon USB AC Adapter [SAD-27B]
Standard Horizon USB Charge Cable f/HX300 [T9101606]
Standard Horizon USB Charger AC Plug [SAD-17B]
Standard Horizon USB-57B PC Programming Cable [USB-57B]
Standard Horizon USB-62C Programming Cable [USB-62C]
Standard Horizon VLH-3000A 30W Dual Zone PA/Loud Hailer/Fog w/Listen Back & 2 Optional Intercom Stations [VLH-3000A]
Standard Horizon Wired Remote Access Microphone RAM4 [SSM-70H]