Step up to great wireless sound with the new HD 450BT. Delivering active noise cancellation, high-quality wireless codec support (AAC, aptX™ Low Latency), 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. Bluetooth 5. 0 technology for effortless, reliable connectivity including AAC and AptX Low Latency codec support Active noise cancellation for uninterrupted listening pleasure 30-hour battery life with USB-C fast charging Intuitive controls, including Virtual Assistant button for Siri and Google Assistant Sennheiser App support providing an equalizer, Podcast Mode and Firmware updates Included components: HD 450BT wireless headphones, Audio cable, USB-C is charging cable, Carry case, Quick guide and safety guide