Cobra FS300 is a pair of family safety radios that enable convenient and easy communication with a range of up to 8 miles. They come pre-paired, ready to use without any setup, and feature a built-in microphone, call button, LCD display, and volume/channel buttons. With 22 channels and 8 volume levels, you can customize your communication experience. The radios also have a scan function to monitor or find other group members, and a VOX mode for hands-free communication when in child communication mode.