The ATH-TWX9 truly wireless earbuds offer the freedom to customize your sound space for an advanced audio experience. These headphones create an immersive audio experience and feature digital hybrid noise canceling technology. With unique features including deep-UV sterilization, 360 Reality Audio for a realistic 3D sound stage, and Snapdragon Sound™ platform for higher quality music, video, and calls, the ATH-TWX9 set themselves above the rest as the best truly wireless headphones.