5 rotations/minute) give you 1.5 hrs on low and 30 mins on highBright yellow exterior helps you find your flashlight easier in the darkAm & Fm RadioGet critical updates in an emergency with the built-in AM/FM radioAdjust the volume for perfect volumeHeadphone jack obtainable for plugging in earphones and headphonesSiren function for getting help in an emergencyTelescopic antenna for better signal receptionChargerCharge your devices via USBUSB adapter includedPanic AlarmPanic function for getting help in an emergencySpecificationsColor: Yellow Emergency Zone 518 Dynamo Radio & Flashlight & Charger; Yellow. This flashlight has a hand crank, when cranked the power you need will be provided. FeaturesSwitch between high (3 LEDs) and low (1 LED) to use power only when you need itCrank to recharge - 1 min of cranking (1.