Akai Advance 61 cover -Engineered specifically for the Akai Advance 61 Keyboard Controller. Custom moulded to fit the contours of the Advance 61 whilst leaving USB connections in place, the Advance 61 can sit ready for operation. Super durable polycarbonate shell protects delicate keys during transportation and slides straight into a flight case or controller bag for maximum protection. Don't go losing your keys.