Sennheiser CX 400BT True Wireless Earbuds Bluetooth In Ear Headphones for Music and Calls with Passive Noise Cancellation Customisable Touch Controls, White

Audio quality is our top priority: Experience great sound with a 7 mm dynamic driver and a wide range of Bluetooth codec support Long battery life and comfortable wearing: Get up to 20 hours of music playtime with one charge - The ergonomic design​ offers optimal comfort and secure fit with 4 ear adapter sizes​​ Personalise to your everday needs: Fully adaptable controls for music, calls and voice assistant​ - Built-in audio equaliser​ adapts the sound to your preferences Full digital control with our app: Our Smart Control app for iOS / Android​ allows all of the earphone functionalities to be modified to your personal choice Enjoy outstanding sound quality no matter your mobile device or your surroundings with our wide range of audio codec support including AAC, aptX, SBC as well as passive Noise Cancelling Sennheiser uses decades of expertise to drive the world of audio technology forward with every product - for new, unique sound experiences