WEATHER RADIO WITH BASS SPEAKER - Its built-in precision chip ensures a reliable signal. The AM reception range is farther than FM shortwave. However, FM can receive important news and weather warnings such as hurricanes, tornadoes, storms, fires, etc. more clearly within 10 kilometers. In addition, the built-in bass speaker ensures high-quality sound and crystal clear broadcasts. 4-WAY POWER SOURCES - Dynamo radio has 4 ways to be powered: hand crank, solar panel, USB-C charging and built-in rechargeable battery. This makes it easy to operate the emergency hand crank radio for a long time when the power is off and the batteries are dead, making it the best choice for an emergency pack. Also, the solar battery can last up to 30 years if used 5H per day. 4 LIGHT SETTINGS & SOS MODE - This small solar radio has 4 adjustable lighting modes, including long range mode (1W*1LED), passing mode (0.3W*4LED), long range mode + passing mode (5LED), strong flashing mode. In case of emergency, the