Sennheiser XSW IEM SET Wireless In-Ear Monitor SystemThe Sennheiser XSW IEM SET Wireless In Ear Monitor System, E Band is a wireless monitoring system that gives you accurate sound on stage. For many musicians, hearing yourself when playing live can be a significant challenge and the ability to do so or not can really make or break a performance. The Sennheiser XSW system gives you everything you need to cut through the mix and hear your own performance clearly. This system wirelessly sends your sound