JNGOODS M159proP JNGOODS M141P JNGOODS M141PB JNGOODS M141B JNGOODS M159proW If you experience pain or discomfort while using 1. Start with the lowest pressure setting and gradually increase it as you get used to the sensation. 2. If the discomfort persists, try using warm water instead of cold water. What adapter is recommended to use? It is recommended to use an adapter with an output of 5V/1A. JNGOODS LLC Founded in 2023 and based in the United States, JNGOODS is dedicated to providing high-quality oral care solutions. We specialize in selling our proprietary brand of water flossers, designed to help individuals with long-term oral health issues, bad breath, and challenges associated with wearing braces. Our mission is to improve oral hygiene through advanced technology and thoughtful design, enhancing the quality of life for our users “Effectively removes dental plaque and discoloration.”