The Genuine BMW Radio Remote Control Pca (315 Mhz) - 66126959059 is a keyless entry remote control for BMW vehicles. It operates on a frequency of 315 Mhz and is used to remotely lock and unlock the car doors, as well as activate the alarm system. This remote control is an original BMW product and is designed to work with specific models of BMW cars. It is a compact and convenient way to access and secure your vehicle.