Cordless & Rechargeable- Our ocean wave projector light features a built-in rechargeable lithium battery that can last for 4-6 hours when fully charged. With its wireless design, it's easy to place wherever you want, allowing the light to project on your wall or ceiling. Then, you can enjoy a sweet dream under the blue ocean waves or the gorgeous Northern LightsWorry-Free Service & Guarantees- We prioritize your satisfaction and offer a 3-year quality guarantee for our water ripple lamp. If you're not satisfied with your purchase or have any questions, please feel free to contact our customer service team. We'll make every effort to provide satisfactory solutions and reply within 24 hoursA Heartwarming Gift for Your Beloved Ones- This ocean light is an ideal gift for occasions like birthdays, housewarmings, Valentine's Day, anniversaries and so on. It's also great for decorating girls' rooms, passing on the soothing and dreamy warmth to your children, family, lovers and friendsNoise-Free & Memory Function- Our water ripple projector light is newly upgraded with a high-quality silent motor, running almost silently without disturbing your rest. It also has a memory function, resuming the previous light settings upon restart. (Note: Resets to default when the battery is drained.)Convenient Touch & Remote Control- The water lamp allows you to easily adjust colors, brightness and changing modes via the remote control or adjust colors and modes through the body touch switch. The body switch also allows you to turn off the light before bed or turn it on at night easily, without worrying about losing the remote control