Sennheiser Freeport EM 1-B Wireless Receiver 691-693MHz | eBay
Sennheiser Freeport Receiver EM1-C | eBay
Sennheiser FreePort fP35 - Vocal Set | Sweetwater
Amazon.com: 2-Pack Lavalier Lapel Microphone Compatible with Sennheiser Wireless System Bodypack Transmitter, Omnidirectional Condenser Mic for YouTube, Lectures, Living Performance : Musical Instruments
Sennheiser FreePort FP35-B Wireless Microphone System - Walmart.com
Sennheiser Freeport - Radio Microphone System
Sennheiser FreePort fP12 - Presentation Set | Sweetwater