This is the KORG "microKEY2 Air 25" MIDI keyboard. It supports wireless connection via Bluetooth, allowing for wireless connection to computers, iPhones, iPads, etc. It can also be switched to a USB cable connection, enabling comfortable music production (DTM). ＜Condition＞ ・KORG microKEY2-25AIR ・25 keys ・USB connection, Bluetooth connection ・Color: Black ・No noticeable scratches, in clean condition. ・Operation confirmed, works well. ＜Accessories＞ Main unit, box, instruction manual, KORG software license code. Includes a separately sold USB cable.