The Summit Radio runs on self sufficient power with a choice of solar or crank, and also has an AC/DC adaptor. The radio has an LCD display with digital multi-band and digital tuning for 30 pre-select stations. The backlit LCD screen has a clock with an alarm. 30 seconds of wind-up provides 30 minutes of radio play time. No disposable batteries are ever required. Runs for 20 hours on a full charge. Height 3 1/2" x 6 1/2" wide, 1 1/3 pounds. Guaranteed for 2 years.