Sony 的单体全家福：最大的是 XB-1000 的 70mm 单体，看看最大最小的差多少！Tags: active noise cancelling, ActiveNoiseCancelling, anc, balanced armature, balanced armature driver, BalancedArmature, BalancedArmatureDriver, bluetooth headset, bluetooth keyboard, BluetoothHeadset, BluetoothKeyboard, dual driver, DualDriver, experience balanced armature, ExperienceBalancedArmature, featured, features, headphones, in-ear headphones, In-earHeadphones, intra-aural, Noise cancelling headphones, NoiseCancellingHeadphones, quad driver, QuadDriver, single driver, SingleDriver, sony, sony headphones, SonyHeadphones, super woofer, SuperWoofer, triple driver, TripleDriver, video, woofer, XBA