CHRISTMAS DESIGN: The string lights are designed with traditional Christmas elements, such as snowman, Santa Claus, Christmas tree and Christmas stockings, which fit well into the Christmas theme and create a festive atmosphere. The light is powered by 3 AA batteries (not included). DIY YOUR CHRISTMAS: Our Christmas tree string lights include 10 LED lights and 11 extra hanging decorations. Our string lights and Christmas card pendant are separate. Just insert the lights into the pendant, and you can DIY your own Christmas. IP44 WATERPROOF: Don't worry about rainy days, our certified IP 44 battery box is waterproof, making outdoor lighting decorations easier and more durable. MULTIPLE LIGHTING MODES: The combination of lighting suits different occasions and moods: waves, sequential, slow, slow fade, flashing/flash and constant. MULTI-USE DECORATION LIGHTS: Christmas, weddings, home parties, carnival, festival activities in shops/stores, decorations in restaurants/hotels/offices/parks/shopping malls/lobbies/public areas and all other indoor and outdoor special occasions.