Crisp, clear communication with easy button access. Monitor checks for any activity within your channel. 121 privacy codes give you up to 2,662 channels options to block other conversations. NOAA weather alert radio with weather scan automatically locks on to your local weather channel & alerts you to severe weather. Silent operation turns off all tones. High / Low power settings let you adjust transmit power to conserve battery life. eVOX hands free operation (three levels). Easy voice activation. Power Source(s): AAA Alkaline; NiMH Batteries; Number of Channels: 36; Color(s): Yellow / Black; Frequencies: FRS.