Operation confirmed. Used for one season. It was attached to a steel rack. I used it with homemade mounting brackets. Instruction manual and two mounting plates are missing. Regarding the mounting plates, since the main unit has a strong magnet built-in, mounting brackets are not necessary if it is a metal desk. Compact design electric heater. - Model name: KH1800 - Power supply: AC100V 50/60Hz - Size: 36cm (height) x 46cm (width) x 3cm (depth) From ChatGPT: "Gently warms cold feet" thin table heater "Fits perfectly under the desk/at your feet / magnetic desk heater" "Thin 3cm, doesn't take up space / with 3-hour OFF timer" "Energy-saving, about 1.7 yen per hour for warm feet" "For offices, study desks, reception desks / easy to attach to steel desks" "For cold feet in winter / easy heating with magnetic attachment" Thank you for viewing. I gave up using it because it didn't fit my home table, so it's like new. Only operation confirmed.