A space-saving AM/FM clock radio with large, easy-to-read 0.9" green LED display. Top firing speaker with built-in diffuser for better sound. Sensitive AM/FM tuner with linear tuning dial. Wake to your favorite radio station or the electronic buzzer alarm that starts softly and gradually increases in volume to wake you gently. Sleep to music with auto-shutoff timer. Battery back up system requires one 9-Volt battery, not included. Low battery indicator warns you when it’s time to replace the battery. Built-in connection cord to listen to an external audio source such as an iPod, MP3 player, CD player, etc.