Are Wahl Home Pet products universal voltage for traveling overseas?

No. Most corded clippers designed/sold by Wahl Home Products are designed for the US market, uses 110v to 120v and 60Hz.  Wahl does offer a variety of cordless (battery operated/rechargeable)  clippers and trimmers that can be used for traveling overseas. Please call our customer service department at 800-729-9245 to get more information or contact us at help@wahlclipper.com.