Best gmrs radios for sale! The General Mobile Radio Service (GMRS) is a land-mobile FM UHF radio service designed for long-distance two-way communication compared with FRS. We have GMRS portable radios with different powers to meet your needs for distance. There are also gmrs radios with individual functions, such as NOAA, larger battery, waterproof etc., Each hand-held portable gmrs radio unit comply with the FCC definition. Get your first gmrs radio from Retevis Solutions.