Retevis RT3S dual band digital ham radio, which compatible with any existing analog two-way radio, Up to 3000 channels, Can be used for very complex communication. Built in GPS, you can find your partner easily in the wild.
But sometimes the walkie-talkie does not display the high ground power, how should we solve it to adjust the power?
First turn off the radio, press and hold side key 2, then turn it on, and the power can be displayed.