Come and see our amazing products! There are 3 buttonson/off/auto. When you turn to automatic style. The special proximity sensors can tell when your hand is close and will light up in response for approximately 12 seconds-just enough time to grab that mint, wallet, phone, or keys. Automatically switches off, saving battery life. Put an end to endless digging through your purse. It's small, light, and perfect for travel. Pls confirm further with us if any query about packing info, inventory status and time schedule.