High-Res Audio: Equipped with custom 40mm dynamic drivers, the soundcore Q11i Bluetooth Headphones provide High-Res sound when connected via the included AUX cable Instant Bass Boost: Thanks to BassUp technology, you can simply hit the BassUp button to enhance the bass instantly. This feature is ideal for genres like EDM and hip-hop, delivering a richer, more powerful bass for an engaging listening experience Extended Playtime: Experience up to 60 hours of playtime with the soundcore Q11i Bluetooth Headphones. A quick 5-minute charge can give you an additional 4 hours of music, allowing you to enjoy your favorite tunes for even longer Removable Ear Cushions: The ear cushions on the soundcore Q11i can be easily detached and replaced for your convenience Please note: The soundcore Q11i Bluetooth Headphones do not include active noise cancelling (ANC) 6 Months Warranty