MECHANICAL DEASIGN: Mechanical clockwork design makes it work without battery, it is environmentally friendly and could work longer. When using, please wind it to over 55 and then wind it back to the time you want to set. Or it won't ring or last.
MAGNET DESIGN: Magnets on the back for adsorption on iron-containing objects such as refrigerators and microwave ovens.
INDICATOR DESIGN: with a red indicator area on the dial,it's easier to recognize as the pointer moves away even in a distance.
72 DB REMINDER DESIGN: it's suitable for a variety of scenarios. Suggest to use it in the room where you are.
Corrosion-resistant and oxidation-resistant metal casing.
