This is a LINE FRIENDS BT21 KOYA design sensor mood lamp. It was included in a lucky bag. There is a small black stain on the back of the main unit. Also, there was some battery leakage from the batteries used previously in the battery compartment. I have thoroughly wiped it, and this is the current condition. There are no issues with the remote control. After wiping it thoroughly and inserting batteries, I confirmed that it works without any problems. It lights up properly. It also responds to the remote control, so there's nothing to worry about. Please feel free to ask if you have any questions! Price can be reduced due to the stains!