The SB-100R is our most valued item yet! An affordable option with so many amazing features for first time and existing SmartBidet users. Loved your first SmartBidet Replace all of your bathrooms with our SB-100R. Customize the SmartBidet functions to match your needs and it becomes default setting once they are set. The temperature and pressure of the water and seat are adjustable as well as the nozzle are all adjustable. Posterior Wash is for His/Her Back. Feminine Wash is a gentler， wider wash for her front. Turbo Wash is the strongest， most concentrated wash for His/Her back. The SB-100R does not include an air dryer. Our 3-in-1 patented stainless steel nozzle self cleans before and after each wash. The nozzle cap is removable in order to clean the inside or to switch for another user (one cap included). Activate the SmartBidet by activating the skin sensor. How do you do that Just sit on the seat. Use any of our features with the remote control and place it onto the holder mounted next to the wall. Did you accidentally leave the remote on the other side of the bathroom No worries! Use the most used functions (Stop， Posterior Wash， and Feminine Wash) on the Simple Operation Panel on your right side. Please carefully follow the measurement instructions to see if the SmartBidet model of your choice will fit your toilet before making your purchase. If you are still unsure， please contact our Customer Support Team with the brand and exact model number of your toilet.