The earbuds feature a hand-tuned ultralow-noise 10mm dynamic driver constructed with three layers of titanium and use Masimo Adaptive Acoustic Technology to create a unique hearing profile perfectly tuned to your ears, while the Immersion Mode lets you set just the right bass level for your listening pleasure. Use active noise cancelling technology to tune out the outside world, or engage Social Mode for more situational awareness. Confidently take calls with clear voice quality provided by four microphones per side, including two bone conduction mics. Use the Denon PerL app to create your profile and fully customize your listening experience. Plus, with 8 h of battery life and three additional charges from the charging case, you can keep the music going all day. The earbuds' wireless Bluetooth 5.3 technology supports the aptX Classic, aptX Lossless, aptX Adaptive, AAC, and SBC codecs.