Is the electrostatic bracelet really useful?

Electrostatic bracelet is a small device used to prevent external static electricity from harming human body. It releases the static electricity left by the human body to the earth, thus reducing the voltage and avoiding the next electric shock. Electrostatic bracelets can't completely eliminate static electricity, but only release a certain amount of static electricity. Therefore, it is recommended to wear the electrostatic bracelet with other items to effectively release static electricity.