The allows full function of your compatible VHF radio from a remote location. There are no complex components, just a simple design that includes soft keys, a 2â diagonal dot matrix display and a coiled cable that stretches from about 1â to nearly 5â.A rotary/push knob for volume, squelch and channel selection makes it easy to use with a dedicated button for access to channels 16/9. All buttons and knobs resemble those of the VHF radio. In addition, GHS 11 features a microphone that has intercom capabilities when connected to a speaker.• Dimensions: 2.7" x 6.1" x 1.6" (6.9 x 15.4 x 4.0 cm)• Weight: 0.7 lb. (0.3 kg)• Operating Temperature Range: 5°F to 158°F (-15°C to 70°C)• Water rating: IPX7• Cable length: 1 ft. coiled (5 ft. stretched)• Compass safe distance: 27â (70 cm)• Display: Backlit LCD• Built-in speaker mic: Yes• 16/9 or 16+ channel button: Yes• Languages: English, French, Italian, German and Spanish Wired Built-In Mic With 10 Meter Deck Cable, Microphone Hanger, Mounting Hardware | GHS 11 Wired VHF Handset