The GHS 10 allows full function of your VHF 200 or VHF 300/300 AIS radio from a remote location. No complex components, just a simple design that includes soft keys and a 2" diagonal dot matrix display. A rotary/push knob for volume, squelch and channel selection make for ease of use with a dedicated button for access to channels 16/9. All buttons and knobs are similar to the VHF radio. In addition, the GHS 10 features a microphone that has intercom capabilities when connected to a speaker. Plus, it is compatible with either a passive or active speaker.