Walkie talkies long rangeH-777 has the ability to penetrate wood, steel, and concrete, which is the perfect way to connect with others, whether at the house, cars trip, family camping and hunting, or on a cruise ship, in mountains. Of course, you can also use it for your teams | Mini sizeThe design of the shorter and thicker antenna makes the new version of H-777 more portable and durable; suitable for family neighborhood or outdoor communication | Easy to change channelAll the H-777 has been set up well,ready to use out of the box CTCSS DCS prevents you from receiving irrelevant teaching |