Imagine a flashlight small enough to attach to your keychain, but with three powerful LED lights, and it never needs batteries!
This is the Solar LED light and emergency whistle keyring.
A small solar panel on the back of the flashlight converts light to energy to power the bright LED lights. No cranking or shaking needed. Even ambient light is enough to keep this tough flashlight shining brightly!
It also has a whistle if needed in an emergency