The Genuine BMW Ultrasonic Transducer SophistoGrey Ii (Wa90 Wc22 Wc23) - 66209306410 is a high-quality automotive part designed specifically for BMW vehicles. This transducer is used in the ultrasonic parking system, which helps drivers detect obstacles while parking. It is compatible with the SophistoGrey Ii (Wa90 Wc22 Wc23) color scheme and has a part number of 66209306410. This product is an authentic BMW part and is made with precision and durability in mind. It is a crucial component for a safe and efficient parking experience.