Step Up to Great Wireless Audio Delivering active noise cancellation, high-quality wireless codec support, and Bluetooth 5.0, this headset gives you superior sound with deep dynamic bass. Exceptional versatility for audio lovers is guaranteed by Voice Assistant access, the Sennheiser Smart Control App and a 30-hour battery life. Enjoy Your Music Without Distraction Thanks to ANC and a closed back design, the HD 450BT delivers captivating sound that you can enjoy without distraction – even in loud environments. Capture every audio detail in exceptional sound quality, assured by high-quality wireless codec support, including AAC and aptX Low Latency. Your Reliable Companion on the Move A great companion for travel, the HD 450BT has a superb 30-hour battery life. And this headset can be quickly charged with USB-C to save you valuable time on the move. The compact folding design – available in black or white – has been crafted from high-quality materials to provide the perfect balance of minimalist style, ergonomic comfort, and take-anywhere durability. Stay Connected Take intuitive control over your music and calls via easy touch buttons on the earcups. Have a truly connected experience through the dedicated Voice Assistant button and Bluetooth 5.0 support or the additional audio cable. Personalize Your Sound Experience Listen to your music the way you want. The Sennheiser Smart Control App, a free dedicated app for iOS and Android, provides an effortless way to control, personalize, update and configure your Sennheiser headphone, headset or soundbar. Your Sound Your Decision The Smart Control App makes it effortless for you to tailor the sound to your personal taste – thanks to an intuitive equalizer. Besides battery status and firmware updates, the app features a podcast mode that optimizes the intelligibility of podcasts, audio books, and other speech content.