Ultra-low power consumption design, no need to replace batteries during normal use Touch sensing, no mechanical moving parts The stainless steel human body static discharger is sealed with epoxy resin as a whole Explosion-proof touch ball, safe release of static electricity, no electric shock when human body touches it Sound and light alarm prompts that the human body is in reliable contact with the explosion-proof touch ball and the static electricity is released, Manufacturer: ZKLGS