Sennheiser XSW 1-ME2 Wireless Lavalier Microphone System - Live Voice / Vocal / Presentation
Amazon.com: Sennheiser AVX Digital Wireless Microphone System - ME2 Lavalier Set,Black : Musical Instruments
Sennheiser EW-D ME4 SET - - All-in-one digital wireless lavalier set for those who speak featuring Sennheiser's renowned ME 4 cardioid clip-on microphone.