Please read the profile section before purchasing. This is a star projector. It was purchased new and only tested for functionality. For this product, it's quicker to watch a video than to look at photos. https://www.youtube.com/watch?v=NWQPBc8pfbw The A-C buttons function as follows: Button A: Rotation ON/OFF Button B: Red/Blue/Green (lights up) ⇒ All off ⇒ Red/Blue/Green (blinks) ⇒ All off ⇒ Red (lights up) ⇒ All off ⇒ Green (lights up) ⇒ All off ⇒ Blue (lights up) ⇒ All off ⇒ Red/Green (lights up) ⇒ All off ⇒ Blue/Green (lights up) ⇒ All off ⇒ Red/Blue (lights up) ⇒ All off ⇒ (Returns to the beginning) Button C: Yellow (lights up) ON/OFF An opaque protective cover is included. However, the projector cannot project with the cover on, so remove the cover when using it as a projector. You can use it as an LED lamp or table lamp by leaving the protective cover on and turning the rotation OFF. Although it is classified as a children's toy, due to the nature of the product, it can also be used as a mirror ball, magic ball, disco light, stage light, or Christmas illumination, as well as an LED lamp or table lamp that can produce various colors. Specifications are as follows: LED colors used: Red, Blue, Green, Yellow Size: Approximately 10.0cm in diameter x 10.5cm in height Power: USB or 4 AA batteries Accessories: USB-DC cable, protective cover ※ When connecting via USB, connect to a USB charger that supports 5V/1A or higher. ※ With batteries, the rotation may slow down or stop before the LEDs stop lighting up when the battery capacity is low, so using a USB charger is recommended. ※ The motor sound during rotation is not reflected in the video. It is silent when rotation is OFF. ※ Please note that there may be slight scratches, stains, or box damage due to it being an overseas product. ● Warranty We will exchange items for initial defects. Please contact us via the comment section within 14 days of receiving the product. (If the item is out of stock, we will offer a cancellation.)