Sennheiser EW-D 835-S SET Digital Wireless Handheld Microphone System - Frequency: R4-9 (552 to 607 MHz) (Open Box)Sennheiser's EW D 835 S SET is a wireless system comprised of an EW D EM wireless receiver and an EW D SKM S digital handheld transmitter. Part of Sennheiser's Evolution Wireless Digital series of gear, the EW D 835 S SET also includes an MMD 835 microphone module, an MZQ 1 microphone clamp for secure and precise positioning, two rod antennas, a power supply with country adapters, a rackmount set for permanent installation, and four rubber feet. This