Oral-B iO2 Dual Handle Electric Toothbrushes is part of Oral-B's iO Series, which aims to combine advanced technology with user-friendly features for an enhanced oral care experience. Dual Handle Design: This set includes two handles, making it ideal for couples or households sharing a toothbrush system. AI Brushing Guidance: The iO2 provides real-time feedback to help users improve their brushing technique. Pressure Sensor: Alerts users when brushing too hard, promoting gentle brushing habits. Multiple Cleaning Modes: Offers various modes tailored to different oral care needs. Long Battery Life: Users have reported up to 37 days of use on a single charge, which is longer than some higher-end models in the iO series.