Philips Sonicare One Battery Toothbrush Mango HY1100/02 is an ultra-portable electric toothbrush designed for a brighter smile. It features micro vibrations and tapered bristles for gentle polishing, a 2-minute timer with 30-second notifications, and a 3-month battery life. Ideal for travel with a compact travel case. Key Features Micro vibrations for gentle polishing 3-month battery life Includes AAA battery Compact travel case Two-minute SmarTimer Quadpacer for thorough cleaning Philips Sonicare One Battery Toothbrush Mango HY1100/02 is an ultra-portable electric toothbrush designed for a brighter smile. It features micro vibrations and tapered bristles for gentle polishing, a 2-minute timer with 30-second notifications, and a 3-month battery life. Ideal for travel with a compact travel case.Use The 2-Minute Timer, Replace Brush Heads Every 3 Months.Avoid Exposing To High Heat And Discontinue Use If It Becomes Unusually Hot Or Discolored.