This is a SwitchBot fingerprint authentication pad. It was working and in use normally until yesterday. I am selling it due to replacing the device. The surface has some discoloration, but it won't be noticeable because I will include a black cover. (It will look like the third photo.) - Brand: SwitchBot - Model Name: Fingerprint Authentication Pad - Included items: 2 batteries (used for 3 months), instruction manual, other accessories (see photos) * The double-sided tape for attaching has been used. Please consider this item as used.