?Product advantages? Mosquito bites, just a little bit to relieve itching, reduce swelling and leave no trace Built-in smart chip, if there is no operation for 1 minute, the instrument will automatically shut down Ergonomic design, comfortable orientation, easy to use PTC fever tablets are healthy and safe, and can relieve itching quickly in 30 seconds A full charge can be used about 300 times, giving you the comfort of a whole summer ?Product parameters? Product name: anti-itch pen Battery specification: 3.7V 650mA Charging time: 2 hours Rated power: 2.5W Product color: white Dimensions: 145 22 22mm?Effective?Quickly stops itching, swelling and irritation from mosquitoes, bees, flies, ants, invisible tummy, chiggers and other bug bites and stings. It can solve large areas of itching at one time. ?Portable Design?The bug bite cure is used by USB charging, compact and lightweight, it is an ideal accessory for traveling, camping and other outdoor activities--ready to use. ?Chemical Free?Non-toxic and safe to use, the insect bite pen only uses heat, suitable for pregnant women, you can avoid using chemical products such as insect bite creams or insect repellent sprays. ?Adjustable?Choose from 3 temperature control modes (45 , 48 , 50 ), choose the appropriate mode according to the degree of itching, gentle on the skin, quickly relieve the itching and irritation of mosquito bites, and achieve instant relief in 30 seconds. ?Physical Antipruritic?Through heat pulse technology, the skin is heated to destroy the saliva protein injected when mosquito bites, increase circulation and local blood flow, and quickly relieve itching in a non-chemical way.