A:Answer Hello - This model is compatible with 120v, 60hz only and is not global voltage. When purchased in North America, it is meant for use in North America only. Even with the use of a converter, as a converter will only convert voltage and not the hertz. Do not plug the device into a voltage system that is different than what is stated on the product. Doing so will damage the unit and void our manufacturer's warranty. If you have additional questions, please contact us at 1-800-525-2774 or email smreviews@waterpik.com.