[Emergency Necessary] The built-in 4000mAh battery can charge the phone in an emergency. If there is no power to charge, the hand crank and solar panels can save you energy. Portable AM/FM/WB radio, zoom flashlight with 3 modes, reading light, SOS alarm, solar radio meet your various needs and are very practical in emergency situations. [Upgraded 4000mAh Large Capacity Version] The battery capacity is two or even four times that of other solar radios on the market. The solar radio uses replaceable lithium-ion batteries, which can effectively extend the electromagnetic life of the radio. in case of power outage or emergency In case of emergency, it can be used as a mobile power source for mobile phones. [4 Types of Charging Methods] Bad weather causes power outages or there is no power supply in outdoor sports campsites, hand crank and solar panels can power the radio in an emergency. Battery charging and USB fast charging are the main power sources for daily use. The battery can be