Reduce Noise By Up to 90%: soundcore Q20i noise cancelling headphones use hybrid active noise cancelling technology to effectively block out sounds in real-time. Hi-Res Certified Audio: Hi-Res certified audio means that you can listen to wireless music of better quality than a CD. The large 40mm drivers can also produce crisp sound with thumping bass. Ideal for Commutes and Travel: Explore more with 40 hours of playtime with ANC on and 60 hours with ANC off. And even if you're in a rush and running low on power, a 5-minute fast charge will give you 4 more hours of peaceful travel. soundcore App: Personalize your listening experience in the soundcore app with a customizable EQ,