OnePlus's Back to College sale slashes $30 off the impressive OnePlus Buds 4, bringing flagship-tier active noise cancellation and bass-heavy audio to a competitive $100 price point. With design refinements for comfort and dual-DAC audio tuning, these earbuds present a compelling alternative to pricier options like AirPods Pro. The limited-time deal ends September 21, offering significant savings on a device released just months ago.