A Full Night's Peaceful Sleep: Our exclusive 4-point noise masking system and twin-seal ear tips with 3× stronger passive noise blocking mask snoring, pet sounds, and ambient noise. Note: Sleep A20 does not feature active noise cancelling. Ultra-Comfort for Side Sleepers: Utilizing ultra-soft materials, soundcore's Air Wing, and a 3D ergonomic design, Sleep A20 earbuds ensure pressureless comfort all night long even for side sleeping. Drift Off Faster with AI Brainwave Audio: The soundcore app's binaural beats induce brainwaves that promote relaxation, helping you fall asleep quicker. Audio is continuous and loop-free to keep your rest undisturbed. Week-Long Use: Up to 14 hours per charge, with 80 hours from the case, lasting a full week in Sleep mode. In Bluetooth mode, enjoy 10 hours of playtime, extendable to 55 hours with the case. Sleep Analytics for Better Sleep: Built with MEMS sensors, these earbuds track your sleep status and provide detailed visual reports in the app, helping you understand and improve your sleep quality.