Valink Indoor/Outdoor String Lights, Mini LED Night Light, Christmas Lights Decorative Lamp for Wedding Festival Chrismas Birthday Party Romantic Decorative Supplies - 7.9inch, Blue, Dolphin Shape Nice and attractive design Energy saving and environmental friendly, long lifespan Powered by 5x AA batteries(batteries not included) or plug and play by USB cable Adds more interesting on your life, also it's a great gift to your friends.