BITE HELPER is designed to work on neutralizing itch and irritation caused by insect stings and bites from mosquitoes, flies, bees, wasps and ants. TECHNOLOGY Thermo-Pulse-Technology delivers heat and vibration to the affected area increasing localized blood flow. CHILDREN Do NOT use on children younger than 4 years of age. ALLERGY BITE HELPER will not decrease or suppress allergic reaction to bites. WHERE IS BH MADE Designed and Engineered in U.S.A. Made in Taiwan REUSABLE DEVICE BITE HELPER uses two AA size 1.5-volt batteries. Alkaline batteries are recommended.