Physical mosquito repellent, non-chemical mosquito repellent, safe, more environmentally friendly, more reassuring and healthier for the elderly, children, pregnant women, You can wear it both indoors and outdoors (at the seaside, in parks, camping, hiking, fishing). The bracelet has mosquito repellent effect by imitating negative ultrasound for mosquitoes. In nature, female mosquitoes are blood-sucking mosquitoes during the conception and egg-laying phase.
