Premium materials: Top with ceramic materials and ABS plastics, rapid heating, more uniform heating, more energy efficient than the equivalent heating effect. Practical new texture is delicate, comfortable, not irritating.Safe and comfortable: Built-in linear motor, vibration massage, anti-itch comfort, fast reaction speed, low power consumption, pleasant massage in the bite area, reduces itching, effectively promotes blood circulation and local blood circulation in the bite area and promote blood circulation in the bite area.Working principle: The microchip is used to collect heat to provide heat, and the infrared pulse technology is used to transfer the heat evenly to the skin, so the protein in the mosquito's saliva increases the itching, and the pulse light barrier increases the mosquito bite numb and relieves itching.Quickly relieves itching: It simulates the detoxification reaction of the human body after a bite and uses pulse technology and temperature to quickly metabolize the itchy substances in the mosquito's saliva. 8S can effectively and quickly relieve itching, and largely solve the problem of mosquitos.Easy to carry: The antipruritic device is light and easy to carry. The insect bite neutralizer is small and light. Suitable for family, travel and outdoors. Put it in a backpack, first aid kit, fishing gear, saddlebag, medicine cabinet and travel kite, suitable for every outing and camping.Tips: It requires 3-4+ clicks before heating up, please press the cap when you install the battery.Material: ABS plasticColor whiteWeight: about 50gSize L x W x H: 15.4 x 10.2 x 3.5 cmBattery: Use 2 x AAA batteries (not included)Scope of delivery:1 x anti-itch pen.