OverviewStep up to great wireless sound with the new HD 450BT. With active noise cancellation, high-quality wireless codec support, and Bluetooth 5.0 they deliver superior sound with deep dynamic bass. Advanced features include Virtual Assistant interaction, customization via the Sennheiser Smart Control App, a special podcast mode, and a 30-hour battery life, to deliver exceptional versatility for audio lovers.Key FeaturesActive noise cancellation for uninterrupted listening pleasureGreat wireless sound with deep dynamic bass and high-quality codec support including AAC and AptX Low Latency30-hour battery lifeApp support providing an equalizer, Podcast Mode and Firmware updatesIntuitive controls including Virtual Assistant button for Siri and Google Assistant