The BLX14/SM35 with SM35 features a durable, industry-standard microphone cartridge in a comfortable headset design for hands-free performance combined with simple setup and an intuitive interface for performance you can trust.comfortably in hand, with adjustable gain control. The BLX4R is a rugged, metal rack-mountable receiver with a simple set-up and intuitive controls. One-touch QuickScan frequency selection quickly locates the best frequency, while removable antennas allow for quick antenna distribution. Rackmount kit included.The new SM35 headset condenser microphone from Shure gives multi-instrumentalists the freedom to express themselves without having to sacrifice the sound quality found in traditional microphones. A tight, unidirectional (cardioid) pickup pattern provides excellent rejection of off-axis sound sources to prevent feedback and signal bleed for superior performance on stage. Standard TA4F (TQG) connectivity seamlessly integrates into any Shure wireless bodypack system, and its availability in a number of bundled systems makes it appropriate for any stage, ranging from small clubs to large installations and arena tours. The SM35-XLR (optional) includes an inline RPM626 preamp for use in standard wired (XLR) application.