Hi-Res Audio: Featuring custom 40mm dynamic drivers, soundcore Q11i Bluetooth Headphones deliver Hi-Res sound when connected using the included AUX cable. One-Touch Bass Boost: With BassUp technology, simply press the BassUp button to instantly boost the bass. Perfect for genres like EDM and hip-hop, it ensures deeper, more powerful bass to create an immersive experience. 60-Hour Playtime: Enjoy up to 60 hours of playtime with soundcore Q11i Bluetooth Headphones. A quick 5-minute charge gives you an extra 4 hours of listening, so you can stay in the groove for longer. Detachable Ear Cushions: Easily detach and replace soundcore Q11i's ear cushions.