The ARRI WCU-4 Wireless Compact Unit is a 3-axis handheld controller featuring an integrated lens display. Control camera functions, focus, iris, and/or zoom from a distance, such as when shooting handheld or using a stabilizer, gimbal or crane. The WCU-4 is compatible with the ARRI ALEXA Mini, ALEXA Plus, and Studio cameras, and with ARRI UMC-4, SMC-1, EMC-1, and AMC-1 motor controllers. Camera functions are controllable for ARRI ALEXA Mini, Plus and Studio, and ARRI AMIRA when used with the UMC-4 motor controller.

The WCU-4 Monitor Bracket from ARRI can be used to attach the WCU-4 hand unit to your onboard monitor. This bracket mounts via a built-in 1/4"-20 screw.

The WCU-4 Plate from ARRI can be used to adapt the WCU-4 hand unit for tabletop use, to mount on a C-stand, or for mounting on an onboard monitor.

Small and lightweight, The Sony NP-FM500H Rechargeable Lithium-Ion Battery can be charged or discharged at anytime without developing memory effect. This means that it never loses its ability to hold a full charge. InfoLithium battery packs have a built-in micro processor that accurately calculates remaining battery life in minutes, and they also display remaining battery time on the camera's LCD as well as in the viewfinder by continuously communicating with the camcorder or digital camera.