Battery Operated - Sealed battery case design requires 2 AA batteries (not included). Each set includes a small box with an on/off button. Ideal for indoor use anywhere. Fashion - The 1.5m string light with 10 clips only on/off by button. 3m/6m/10m string lights with 20/40/100 clips can be turned on/flash/off by one button. Create a romantic atmosphere and record your wonderful memory - Each LED bulb has with a transparent clip that can clip a photo or other small objects, creating excellent lighting and a warm atmosphere, a perfect way to bring back your sweet memory in a radiant atmosphere. A light perfect for decoration - Decorate your garden, porch, living room, bedroom, windows, doors, floors, ceilings, grasses, Christmas trees and even the party with a string light to add a beautiful glow to your life .