Speakers: Built-in 50mm speakers are also equipped with a stereo headphone jack, so you dont have to worry about listening to the radio and music around you. 4 power supply methods: the radio has a built-in 2500mAh lithium battery. There are three charging methods: solar charging, manual charging and USB charging. Even without charging, you can use 3 AA dry batteries (not included). SOS alarm function: In an emergency, use the flashlight and alarm function to make rescue easier under bright lights and loud noises. The waterproof level can protect the body near water splashes or when a small amount of rain enters. Multifunctional emergency radio: AM/FM/Broadband FM radio, flashlight, mobile phone charging, SOS alarm, reading light and other 5 functions multifunctional radio. It can be used for earthquakes, tsunamis, typhoons, power outage emergency supplies, camping,daily use and other occasions. Every family needs: most of their functions are designed for emergencies. Emergency radio can help us increase our strength. With electricity, lights, alarm clocks and radios, we can do more. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.