The ARRI SXU-1 Single Axis Unit is a wireless hand unit offering single-axis focus, iris, or zoom control. The compact ARRI SXU-1 Single Axis Unit features remote camera start/stop and tally, an ergonomic wooden handgrip, and a backlit, super-smooth control knob. This simple unit can be used in conjunction with the WCU-4 or with the SMC-1 single-motor controller