Lacks Tuning Flexibility �?While it is simple for more advanced users, there's no tuning functionality to adapt to your space. You’ll need an external board If you're particular about how you'd like items to sound. Built-In Safety �?The XPRS122 features multiple protections to ensure you don’t blow the unit. https://www.bluetoothspeaker.top/good-quality-bluetooth-speakers-wireless-speaker-party-box-super-bass-speaker/