This is a set of Hawstone's "Air Conditioner Partner" and "Smart Temperature & Humidity Meter." I have only unboxed the Air Conditioner Partner after purchase and have not used it. Please see the following for product specifications: https://store.makuake.com/products/8690200445152?variant=46785434845408 The supporter project period on the Makuake site has ended, and the main unit price of the Air Conditioner Partner is now 9,500 yen. The Smart Temperature & Humidity Meter (regular price of 3,125 yen in the project) is not yet available for general sale. Regarding the warranty, I will provide the project purchase ID after purchase. No claims and no returns, please.