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

Features

• Channel switching; long press the button for three seconds to switch channels; if you need to adjust the volume; try to press the button briefly
• RT97S vs RT97; RT97S has a DB-9 female connector; which can be directly connected to the microphone and is compatible with Raspberry Pi; enabling multiple RT97S repeaters to be interconnected to extend the communication distance (additional components are not included in the package)
• GMRS radio base station; 8 default GMRS channels; Compatible with RT76; RT76P; RB26, etc.; If you need customized frequency; please contact us via Amazon email
• Extend the distance; RT97S helps to connect emergency calls outside the range of the walkie talkies; and is suitable for School; outdoor activities; remote mountainous areas; large-scale farms; towns communications; etc
• Built-in duplexer; can receive and transmit signals at the same time; only needs one antenna to transmit walkie-talkie signals; the package does not include the antenna; need to pay attention to some power losses caused by the duplexer