Thank you for viewing. This is an EWiN keyboard with Bluetooth (3 devices) + USB connection. I bought it in March, so it's still new, but perhaps due to its placement at work, the F10 key is missing. (I can't find the detached key.) This is the reason for the junk item status. There are no operational problems. (The F10 key still responds.) Instruction manual (Japanese) included. The original box from purchase is not included (to reduce shipping costs). 【Product Specifications】 Body size: 29.3 x 12.5 x 2cm Body weight: Approximately 301g Keys: Pantagraph type Number of keys/layout: 79 keys / Japanese layout Operating voltage: 3V Operating current: 3.0mA Standby current: 0.5mA Sleep current: 0.1 mA Connection method: Bluetooth 5.2 + 2.4G USB wireless compatible Communication distance: 10m Sleep time: 10 minutes Compatible batteries: 2 x AAA batteries (please prepare separately.) 【Transactions & Shipping】 ● Dedicated listings, holds, price reductions, and individual sales = all not possible. ● Pre-purchase confirmation comments = not necessary. ● Shipping will be via post. 　We will not notify you of changes between Yu-packet and Nekopos. Please understand.