Apple’s Adaptive EQ feature is built into the AirPods (3rd generation) and works on iOS, Android, and Windows devices. According to Apple, Adaptive EQ measures how the sound signal is delivered to your ear and makes real-time adjustments to the low and midrange frequencies to compensate for fit. Simply put, Adaptive EQ is meant to get the best performance possible out of the AirPods, no matter where that bar is. Adaptive EQ processing is also found on the AirPods Pro and AirPods Max.