This is a wired connection model. It has been opened to check the contents, but both the accessories and the main unit are unused. NiZ Keyboard X99 Electrostatic Capacitive Non-Contact Method USB Wired Connection 99 Keys Key Weight 35g Tenkey Included Width 38cm Keymap Change Tool Key functions can be assigned from the dedicated software Compatible with both Windows and Mac APC function English layout Silent Compact size PBT material Compatible with Windows/macOS/Android/Linux Connection type...Wired Key switch...Electrostatic Capacitive Non-Contact Method Keyboard layout...English