Have you ever experienced the despair of going out on a mobile phone without electricity? What were you doing when the cell phone was dead? Maybe you're calling someone important. Maybe you use your mobile phone to navigate in a strange place. Maybe
The pull-ring type is simpler to use. It only needs to connect the rope section to the key ring. When you need lighting, you can find the flashlight and just pull it lightly. You don't need to touch the button slowly on the flashlight.