1. Materials: The top is made of ceramic materials and ABS plastic, which heats up quickly and evenly. It is more energy-efficient when achieving the same heating effect. The materials used have a delicate, comfortable texture and are non-irritating. 2. Safety and comfort: It is equipped with a built-in linear motor that can perform vibration massage, offering a comfortable way to relieve itching. It responds quickly and has low power consumption. It can perform a comfortable massage on mosquito bite areas, reducing itching and promoting blood circulation at the bite site and local blood circulation. 3. Working principle: It uses a microchip to collect heat for heating. It adopts infrared pulse technology to evenly transfer heat to the skin, decomposing the proteins in mosquito saliva that cause itching. At the same time, it increases the numbness at the mosquito bite area through a pulsed light barrier to relieve itching. 4. Quick itching relief: It simulates the body's detoxification reaction after being bitten and uses pulse technology and temperature to quickly metabolize the substances in mosquito saliva that cause itching. It can relieve itching effectively in about 8 seconds, helping to solve the problem of mosquito bites. 5. Portability: This itching reliever is lightweight and easy to carry. The mosquito bite neutralizer is small in size and light in weight, suitable for use at home, during travel, and in outdoor activities. It can be placed in backpacks, first aid kits, fishing tackle bags, saddle bags, medicine cabinets, and travel supplies, meeting the needs of outings and camping. 6. Instructions: Click 3 - 4 times or more before heating. Press the cover when installing the batteries. You need to use 2 AA batteries (batteries are not included). 7. Color difference: Due to differences in monitors and lighting effects, the actual color may vary slightly from the picture. 8. Measurement deviation: Due to manual measurement, a deviation of 1 - 3 cm is allowed. 9. Dimensions: 17 * 3 * 3 cm. 10. Shipping color: White. 11. Shipping quantity: 2 pieces.