Superior sound. Tailored to you. Your day-to-day may change, but your enjoyment of superior sound won’t. Powered by Sennheiser’s leading audio technology, the new CX 400BT True Wireless gives you total control over an exceptional sound experience. With intuitive customizable controls, long-lasting battery life, and a design made for all-day comfort, they are the ideal, uncompromised choice for people who are passionate about great sound.

Superior sound. Immerse yourself in amazing sound quality thanks to Sennheiser’s unique 7mm dynamic audio drivers and personalize your audio experience with the built-in equalizer and the Sennheiser Smart Control app.

Customizable controls. Manage your music, make calls, or trigger the voice assistant with customizable touch-sensitive technology built into both earbuds.

Codec support. Enjoy outstanding sound quality no matter your mobile device with our wide range of audio codec support including AAC, aptX, and SBC.

Battery life. Experience non-stop playtime with 20 hours of battery life – 7 hours on a single charge and a further 13 hours via the charging case.

Ergonomic design. Dive into your favorite music for as long as you like with an ergonomic design made for all-day wearing.