Model number: N2QAYB001016 Part number: 598 [Power-on confirmation] ・Infrared check performed on each button Note: This does not guarantee all functions. [Cleaned] ・Simple disinfection with alcohol has been performed. [Shipping method] ・Wrapped in film to prevent scratches, and shipped in a cardboard box via Rakuraku Mercari delivery, or in a bubble wrap envelope via Yuuyu Mercari delivery. [Operation guarantee] ・Refund will be provided for infrared issues within 2 days of arrival.