There's an application You need to use with the SoundLink Max, but it isn't really required. If you are doing utilize it, you'll get access to EQing, speaker customization options, and firmware updates. You too can run this whereas charging, nevertheless you will find strict warnings about protecting the https://www.bluetoothspeaker.top/high-quality-wireless-rechargeable-double-horn-subwoofer-speaker-heavy-bass-bluetooth-speaker/