What if you did not have to think about the annoyance of power at an event? It is a small detail, but can sometimes be the most tedious and difficult conversation. Sennheiser has come out with a wireless loudspeaker system, LSP 500 PRO, that can support indoor and outdoor events on a self-contained battery without the need for power cables. This system is also capable of being controlled via an app for tablets, which can serve up to 20 LSP 500 PROs at one time! Read here to learn more about the features and specifications of the LSP 500 PRO.