Hand-powered torches have been around for ages. Essentially you repeatedly squeeze a lever that converts the linear motion into a rotational motion that drives a dynamo. The dynamo then charges an internal battery that allows the low-powered light (often LED-based) to light up for a few minutes or hours. However, the Mini Dynamo Massager Torch, rather bizarrely, adds a massage function!
The massaging torch will give roughly 3-4 minutes of massage after around 1 minute of cranking. I just wonder how much your hand will ache after cranking the torch for 1 minute! However, you get several minutes of lighting when cranking the torch to a full charge, how much time depends on how bright you set the light to. However, if you think you might need a massage in the middle of nowhere when you’re on your own, it might be useful!
Source: Coolest-Gadgets
Dan is a well-experienced author who is interested in exploring new things related to eco-friendly gadgets and technologies. He never lets any latest technology go off his sight. Being passionate about contributing to the clean environment, he writes articles on the latest renewable gadgets and other energy-saving technologies.