SmartEra&reg; 3D Crisscross Rings Model Night 7 Color Change USB Touch Button LED Desk Table Light Lamp 7 Color change: Red, Green, Blue, Yellow, Cyan, Pink, White. Touch button: Press one time, one color light up, press it again, it turns off. Press it thirdly, another color light up. Automatically color changing mode. Press the touch button to last color, then press it again, auto color changing mode works. Coming with USB power adapter, you can connecting it to your home power socket or computer USB port. It can be put in bedroom, child room, living room, bar, shop, cafe, restaurant etc as decorative light.