Add a touch of twinkle to every room in your home with these dainty but durable string lights. Tiny warm white energy efficient LED lights float along a moveable black wire, making it easy to wrap this battery-operated piece around every window frame, bookcase, headboard, or mantle, adding your own personal touch to your holiday decor. Strings are each 10 ft. L and operated by a battery box, requiring 3 AA batteries (not included). Lights have an amazing 8 multi-function settings: combination, waves, sequential, slow glow, chasing-flash, slow fade, twinkle flash, and steady flow. There is also a convenient timer feature for the strings - 6 hours on, 18 hours off.