This key fob shell case is a direct-fit replacement compatible with Mitsubishi smart remotes using FCC ID OUC644M. It securely houses your existing circuit board, battery, and emergency key blade—no cutting, programming, or dealership visit required. Crafted from durable OEM-style plastic, the shell refreshes worn, faded, or cracked fobs while restoring the original button feel. Featuring a 4-button layout, its snap-together design ensures quick and easy DIY installation. A cost-effective solution that renews your key’s appearance and maintains full smart remote functionality.