EFM Austin Studio Lite Over Ear Headphones - BlackExperience all day comfort and rich, uninterrupted sound with the EFM Austin Studio Lite Over Ear Headphones. With up to 50 hours of wireless playback or 30 hours with noise cancelling switched on you can tune out distractions and focus on what matters. Bluetooth 5. 4 keeps your connection smooth and stable, while a quick 10 minute charge gives you up to 3 hours of playtime. On ear controls make it easy to manage your tracks, and soft memory foam