1.Easy to use - 10ft/3M wire with 30 LED bulbs, bendable and not easy to break, with stable viewing angle, light in all directions, easy to make any shape you want. 2. ENERGY SAVING - Newest small battery case with switch, easy to hide Requires battery (not included). 3. Waterproof: The battery case is not waterproof, but the light is rainproof, so we suggest you give the battery case some protection when you use it outdoors. 4. Indoor and Outdoor Use: Perfect for decorators and DIY craftsmen. Light up weddings, parties, camping, Christmas trees, centerpieces, wreaths, cosplay, evening picnics, bike helmets, cornhole boards, home moms, and more 5. Packing List: 3 x 10ft/3M 30 Leds LED String Lights (battery not included).