... tools,household gift 4) SOS 8 In 1 Dynamo Multifunctional LED Flashlight Working Principle: This product adopts the principle of cranking ... devices (e.g. mobile phones) via connection cable. Multifunction flashlight includes compass, clock, snooze function and temperature display, etc ... ).4. Lighting function.5. LED backlit display and charging indicator.6. Whistle.7. LED red SOS-flashing.8. Compass ...