You will find an app you can use with the SoundLink Max, but it isn't necessary. If you do use it, you will get use of EQing, speaker customization options, and firmware updates. The brand new features with the Roam 2 are couple, with the most significant currently being https://www.bluetoothspeaker.top/bluetooth-speaker-with-wireless-subwoofer-led-light-bluetooth-speaker-karaoke/