1.4 Charging ModesThe crank radio has a built-in 2500mAh rechargeable battery, the radio can be used continuously for up to 12 hours. Four charging methods are supported: solar, manual power, USB cable and battery.2.Backup Power and Reading Light2500mAh battery provides enough power for mobile devices in emergency. Super bright flashlight and reading light can be used for outdoor night lighting.3.SOS alarmThe generator hand radio with SOS alarm function. The LED flashlight flashes continuously and sounds an alarm, allowing you to signal an emergency in time for danger.4.AM/FM RadioSolar radio can meet your radio needs anytime, anywhere. Listen in real time to understand weather conditions and avoid possible severe weather conditions in advance.5.Ideal Travel CompanionSolar crank radio can be used as a power bank for mobile phones, tablets and MP3 players, and also comes with a solar panel. Small and portable (net weight 355G, 156*55*95mm), it does not take up storage space, it can be put in any pocket or handbag, it is your perfect travel companion.