Sennheiser EW-D ME2 SET - - All-in-one digital wireless lavalier set for those who speak featuring Sennheiser's renowned ME 2 omni-directional clip-on microphone.
Sennheiser EW-DX | Digital Wireless Microphone System | Pro Audio
Sennheiser EW 100 G4-835-S Wireless Handheld Microphone System - A Band | Sweetwater