Multi-function Survival Equipment: This J-369 wind up radio is much more than just a FM/AM portable radio for daily use. Behind its well-made exterior is a Multi-function small radio. The battery radio can be used as a flashlight in the dark, a power bank during power failure, a reading lamp on the campsite and an SOS alarm with flashlight in an emergency. Perfect for camping, fishing, traveling and emergencies.4 Ways to Power Supply: Equipped with built-in non-removable 3000mAh rechargeable battery, this hand crank radio has 4 power options. Micro USB charging for daily life is the best choice. Hand crank and solar panels are an essential addition to camping or an emergency. When power by 3 x AA batteries (not included), switch to "AA" mode. The battery radio wind up won't lose power in any emergency!(Note: It can only charge the internal battery of the rechargeable radio, it can't charge the AA battery.)LED Flashlight & Reading Lamp: The battery operated radio with flashlight and reading lamp is a great alternative for outdoor enthusiasts or the one who needs to walk in dark places. LED Flashlight can illuminate your place and keep you away from the obstacles, so you don't have to worry about tripping over something when you get up at midnight. Pulling up the solar panel, the portable radios small becomes the reading lamp which makes reading easier at night.Emergency Power Sources: This blackout emergency equipment is a helper in case of emergency. When your cell phone runs out of power in outdoor activities or power failure, don't worry! The battery radios can supply emergency power to your phone, and keeps your phone powered in any emergency! (NOTE: Please switch to "Li-ion" mode first, AA battery cannot charge any external device).Helper in an emergency: Equipped with an SOS alarm function, the emergency radio is ideal for outdoor activities such as camping and mountain climbing. When you're in trouble, danger or in emergency and no one knows, switch to SOS mode, the wind up radio with torch will sound an alarm and twinkling lights to draw others attention, and then you'll get help in time.Product DescriptionTwo ways of daily supply powerThis portable radio has two daily power supply modes: "AA" battery mode and "Li-ion" battery mode.When youre camping or fishing, you don't need to worried the crank radio suddenly runs low power. Just insert 3 x AA batteries(not included) to the am fm radio and switch to AA mode. The radio won't lose power at any time!Fully charged the radios mains and battery with the included micro USB cable, switch to Li-ion mode, then taking the radio wind up to the garden or garage and enjoy your working time. (NOTE: Before using the radio battery powered, please select the correct power supply mode first, when in Li-ion battery mode, please make sure the built-in lithium batteries have power.)Two ways of emergency chargingWhen an emergency occurs, such as volcanic eruptions, earthquakes or thunderstorms, there may be a power outage. The hand crank and solar panel are adequate preparations for this emergency.Hand Crank ChargeTurn the crank quickly, it will generate energy to power the hand cranked radio.When the charging indicator light reaches the brightest, under this hand-cranking speed, the effect of hand-cranking charge is the best. (NOTEWhen using the hand crank to charge the solar radio after the windup fm/am radios is completely out of power, it is recommended to hand crank the small radio for at least 5 minutes before using the radio.)Solar Panel ChargePlace the solar panel in direct sunlight. When the battery operated radios small receives enough sunlight to start charging, the charge indicator will light up. (NOTE: Both ways only can charge the internal battery of the transistor radio, it can't charge the AA battery.)