The Genuine BMW Antenna Amplifier Diversity (315 Mhz) - 65209130155 is a high-quality and reliable component designed for use in BMW vehicles. It is specifically designed to amplify the signal of the vehicle's antenna, allowing for improved reception and clearer audio quality. This amplifier operates at a frequency of 315 Mhz, making it compatible with a wide range of BMW models. It is a genuine BMW product, ensuring compatibility and optimal performance. This antenna amplifier is an essential component for maintaining a strong and clear radio signal while driving.