TYT MD-390 GPS DMR Walkie Talkie VHF 136-174MHz IP67 Waterproof Transceiver w/Free Programming cable CD & Earpiece Leave a Comment / By admin / 2017-01-22 TYT MD-390 GPS DMR Walkie Talkie VHF 136-174MHz IP67 Waterproof Transceiver w/Free Programming cable CD & Earpiece