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Retevis RT97S GMRS Repeater, RT97 Upgraded Version, Radio Repeater, Full Duplex Long Range, Compatible with Raspberry Pi, Portable, LCD Screen,for School(1 Pack)

Retevis RT97 GMRS Repeater Kit, Long Range Full Duplex Mobile Repeater(1 Pack) and NR30 GMRS Radios(2 Pack), for Outdoor Countryside Mountain

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Amazon.com: Retevis RT97S Customizable Repeater, RT97 Upgraded Version, Radio Repeater, Full Duplex Analog Repeater, Compatible with Raspberry Pi, High Power, for Camp Hosting Community(1 Pack) : Electronics

Retevis RT97 UPDATE: Real World Range Test - How Far Can The RT97 Repeater Transmit In The Desert?