MULTIPLE POWER SOURCES - The ER310 features 3 sustainable power sources to recharge your radio: Solar Panel, Hand Crank, & Rechargeable 2600 mAh Battery. SOLAR PANEL - Simply recharge the internal lithium ion battery with direct sunlight. HAND CRANK - Recharge the radio during a power outage or anytime away from a power source. RECHARGEABLE 2600 mAh BATTERY - The rechargeable & replaceable long life battery provides up to 32 hours of radio operation. The ER310 can also be powered by 6 “AA” Batteries (Not Included) as a backup power solution. | EMERGENCY FLASHLIGHT - The SOS FLASHLIGHT BEACON flashes Morse code in an emergency scenario and the Bright CREE LED (130 Lumens) can be used to signal for help. Select the Low brightness setting to conserve battery life or the High brightness setting for maximum illumination. | NOAA WEATHER SCAN + ALERT - NOAA Weather Scan will automatically scan through 7 available weather (WX) band channels and locks onto the strongest weather channel to alert you of severe weather updates. NOAA Weather Alert will sound an alarm indicating that there is a risk of severe weather in your area. AM/FM radio is also available. | CHARGE EXTERNAL DEVICES - Quickly charge your portable devices (cell phones, tablets, etc.) using the USB charging cable (included). | ULTRASONIC DOG WHISTLE - Use the dog whistle to assist search and rescue teams in locating individuals during an emergency situation.