OWI Hybrid (non-electronic) bidet seat its technology from Korea. 3 nozzles system provides comprehensive cleansing to men, ladies, kids and elderly people. Press button water control for easily select different nozzle for different washing purpose, no barrier on using by the people who experience blurred vision.It? no electricity needed, operates with water pressure. Just need to take out your old toilet seat and put OWI bidet seat onto the toilet bowl, then connect to the tape water. No plumber needed for installation. Cold/hot water and water pressure at your favorable selection. It is good for women, kids, elderly people and people who suffer from hemorrhoids, constipation, inflammation, sore pain in rectal area.Our updated and new technology developed for building the bidet and control function inside the ceramic toilet bowl. We are happy to co-operate with all big toilet bowl manufacturers. For detail information pls kindly contact us at owidigital.com.