Sennheiser 508901 CX 400BT True Wireless Earbuds Bluetooth In Ear Headphones for Listening to Music and Calling Passive Noise Cancellation Adjustable Touch Control, White

Highest priority for excellent sound: Experience great sound quality with the dynamic 7 mm driver and extensive Bluetooth audio codec support Long battery life and comfortable to wear: listen to up to 20 hours of music on a single charge - ergonomic design with four sizes of ear adapters for optimal comfort and a good fit ! Convenient personalisation: customisable controls for music, calls and voice assistant - the integrated audio equalizer adapts the sound to personal preferences Digital control via app: our smart control app for iOS / Android allows you to customize all the functions of these wireless headphones to your personal needs Enjoy excellent sound quality regardless of your mobile device and environment with our wide range of audio codec support including AAC, aptX, SBC and passive noise cancellation Sennheiser Uses its decades of experience to advance the world of audio technology with each product - for new, unique sound experiences Touch and hold both earbuds for 3 seconds to start Bluetooth pairing