USB Power Supply and Remote Control: These string lights are USB powered and require a USB adapter (not included). A remote control is included for easy operation: on/off, mode change, brightness adjustment, and timer programming. Superior Quality: The Christmas tree string lights have a durable, dust-resistant PVC casing that provides excellent light transmission. The LED bulbs emit a soft, bright light that avoids glare while perfectly illuminating your interior. Easy Installation: Simply insert the rubber end piece into the end of the light string. The bulb at the end holds them securely in place. Christmas Design: Presented in a red gift box adorned with classic Christmas motifs, these string lights are the perfect gift for yourself, family, or friends this winter! They are perfect for decorating windows, curtains, fireplaces, walls, and even the Christmas tree.