Rob at 70percent says you can use this vest’s radio to tell your buddy not to tow you into a monster wave, but since the thing’s only waterproof to 1 meter it probably won’t work after the first time you get bounced off the ocean bottom. The lifejacket has a 14 channel two-way radio so you can switch between talking to truckers and listening to police chatter while sitting in the lineup. The 1.8 mile range will come in handy when you get washed out to sea.