Features and information With the newest Bluetooth technology, Bluetooth 5.2 offers a more reliable and quick connection to all of your devices. Enhanced Bass: Take advantage of BassUp technology and 10mm oversized drivers for precise sound and bass. Isolate Outside Noise: Use hybrid active noise cancellation to cut down on unwanted noise and lose yourself in the sound of only music. AI-Powered Calls: With four microphones and a unique AI algorithm, the Life Dot 3i noise-canceling earbuds efficiently pick up voice, ensuring that every word in the call is audible. 36-Hour Playtime: With the charging case, the Life Dot 3i noise-canceling earbuds can be used for 36 hours in total, and they can be charged for nine hours. Customize your music experience with the Soundcore App to fit your preferences and the environment.