baofeng two-way radio call ( walkie-talkie ) coverage:- 10km dual band/ dual watch/ dual ptt launch key ani code 65- 108mhz fm radio ctcss/ dcs emergency alarm call tone ( 1750hz) high/ low output power dtmf encoded high illumination flashlight it is a dual-band radio, operating on both vhf (136-174mhz) and uhf (400-520mhz) frequencies. the device has a dual push-to-talk (ptt) button, allowing you to transmit on two different frequencies easily. it is often marketed for amateur use, outdoor activities, and professional communication.