Beats Solo 4 Wireless Bluetooth On-Ear Headphones with Dynamic Head Tracking (Cloud Pink)The Beats Solo 4 Wireless Bluetooth On Ear Headphones in Cloud Pink feature custom built 40mm transducers that minimize electronic artifacts, latency, and distortion for extraordinary clarity and range. It makes you feel like you are surrounded by 64 speakers at once. Personalized Spatial Audio with dynamic head tracking uses built in gyroscopes and accelerometers to surround you with sound as you move, creating a truly immersive listening experience.