Uses four different power sources: solar power, dynamo-electric power (manual winding), DC Back-up, normal type 2 "AA" batteries (not included). LED indicator lights up when station is captured. Built-in hihg fidelity loudspeaker. Includes earphones (3.5mm) jack, equipped with nylon belt for easy carrying. Frequency range: 88-108 MHz (FM) and 525-1650 KHz(AM). Advance, hihg precision electrocin circuitry. High sensitivity reception. Superb crystal-clear sound. Heavy-duty military standard mechanic components. FCC Approved. Your 72 hour kit won’t be complete without one.