Several times on lift

Crowded Friday market in Mapusa: chillies, onions, fish, tomatos, clothes and all kinds of gadgets. I stop to buy myself a torch that's powered not by batteries, but by a crank on the side. You pump it a few times, and the light comes on.

Works well, but as always with these things, it's the box it comes in that interests me more. Because printed on the box are these lines:

PRODUCT CHARCTERISTICS

1) This product is a new science and technology product and made with high and new science and technology. It can illuminate only placing it in rhythm.

2) No need any power, no environmental pollution. Low noise and health. Comparing with common torch it can several times on lift.

3) Con stantly using this health torch, it can benefit to your palm, arm and shoulder stretching and blood circulation, so as to let your hands relax and brain clever, hand and brain, coor dinate, and promote your brain memory and health composition.

Quite. But what are the characteristics of this product?

Also, my shoulder is now bulging with muscle. Only, I can't remember which shoulder.