Customized Sound Choose from 22 preset EQs in the soundcore app and customize the tap controls. Use soundcore's signature BassUp preset to boost your bass. Long Playtime and Fast Charging Get 9 hours of playtime on a single charge that extends to 28 hours with the charging case. Charge soundcore A20i true wireless earbuds for 10 minutes for an extra 2 hours of playtime, so you can charge on the go. Designed for Portability Soundcore A20i true wireless earbuds are small and lightweight with a compact case. It also comes with a lanyard, so you don't have to worry about space in your bag or pockets. AI-Enhanced Clear Calls An AI algorithm and 2 built-in microphones ensure that your voice is always heard clearly on calls, no matter how noisy your surroundings are. Lightweight and Comfortable Enjoy extended listening sessions and exceptional comfort due to the ergonomic and lightweight design of A20i true wireless earbuds Customized Sound Choose from 22 preset EQs in the soundcore app and customize the tap controls. Use soundcore's signature BassUp preset to boost your bass. Long Playtime and Fast Charging Get 9 hours of playtime on a single charge that extends to 28 hours with the charging case. Charge soundcore A20i true wireless earbuds for 10 minutes for an extra 2 hours of playtime, so you can charge on the go. Designed for Portability Soundcore A20i true wireless earbuds are small and lightweight with a compact case. It also comes with a lanyard, so you don't have to worry about space in your bag or pockets. AI-Enhanced Clear Calls An AI algorithm and 2 built-in microphones ensure that your voice is always heard clearly on calls, no matter how noisy your surroundings are. Lightweight and Comfortable Enjoy extended listening sessions and exceptional comfort due to the ergonomic and lightweight design of A20i true wireless earbuds.