Bluetooth 5.0 technology for effortlessly 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 charging cable, Carry case, Quick guide & safety guide