The Genuine BMW Antenna Amplifier Diversity (315 Mhz) - 65209193849 is a high-quality, OEM replacement part for BMW vehicles. This antenna amplifier is designed to enhance the radio signal reception of the vehicle's antenna, ensuring clear and uninterrupted audio while driving. It operates at a frequency of 315 Mhz, which is commonly used for car radio and remote keyless entry systems. This antenna amplifier is specifically designed for BMW vehicles and is made with genuine BMW parts to ensure a perfect fit and optimal performance. It is a reliable and durable product that is essential for a smooth and enjoyable driving experience.