Some customers may notice a reduced volume using AirFly Classic (not Pro, Duo or USB-C) with their AirPods or AirPods Pro - when compared to AirPods or AirPods Pro volume when used directly with Apple devices like iPhone, iPad etc. Usually this volume difference can be remedied by simply turning up the source volume. Try to set the volume on the device you are connecting AirFly to - the in-flight entertainment system on an airplane, the cardio machine at the health club - to its highest possible volume setting.