I use several varieties of these walkie-talkies (A-58) - dust and moisture-proof, 82nd modification (with a double button), and came to the conclusion that it is the UV-5R that is balanced in size, weight and buttons, the waterproofness of a waterproof walkie-talkie is doubtful, the bulkiness is increased, 82nd just more, the double button is a dubious convenience, just changed the register to UV-5R with one click ., As for the previous review about encoding, in this case there is a so-called suSee full review