That demagnetizer can be used for demagnetizing watch movements and tools (tweezers, screwdrivers...).
Place the tool or movement in the operation field and press the button for a few seconds. Repeat the process until the desired effect has been achieved.
The device is sold with a european plug.
Dimensions: 110 x 57 x 32 mm.
It can work in both 110 V and 220 V.