Use the AM/FM Portable Clock Radio to keep track of time. With an AM/FM radio and a telescopic FM antenna, the digital clock has a 3.5mm audio input, analog volume control and a stereo headphone jack to give users plenty of audio entertainment avenues. The clock radio requires three C batteries, and a built-in AC power cable and DC battery power provide users with multiple options for power. The clock radio includes a user guide and warranty, and it has up to 8 hours of audio battery life.