Sennheiser XSW-D Portable Lavalier Set Wireless Microphone.

XS Wireless Digital. Like any classic romance, you know it when you experience it—it’s an instant connection. Essentially a cable replacement, XS Wireless Digital uses a 2.4 GHz transmission to create a wireless peer-to-peer connection. It’s as simple as that. As a liberating solution for the musician moving about on stage, or a convenient approach to the rehearsal room, this wireless tool empowers your inner creativity by allowing you to roam free. If you’re looking to change your relationship with cables and frequencies, then you need to try it out. Who knows? You might find you have an instant connection.