【Defective Item】Digital Desk Clock with Thermometer and Alarm Function Received as a gift. Upon opening the box, the instruction manual inside was not for the product. I tried inserting batteries, but I couldn't figure out how to use it. I used generative AI to research how to use it, and I was able to set the time, but it would sometimes revert to the initial time after a while. Also, I couldn't figure out how to set the other functions. I believe it's probably usable as a clock, but just in case, it's being sold as a defective item. Amazon price: 1100 yen Intended for parts, repair, or configuration. Sold as a defective item, so please understand that it is non-refundable and non-returnable (NCNR).