From Manufacturer
The CINEGEARS Single Axis Wireless Mini Controller is a wireless follow focus controller that easily pairs with a CINEGEARS wireless motor. You can use the controller for focus, zoom, or iris. The controller operates on a frequency of 433 MHz, providing a range of up to 198' line of sight. The wireless controller and optional motor combination provide simple auto lens calibration and manual lens remapping for easy lens changes.
The Mini Controller features a removable full sized marking disc, a built-in rechargeable battery with approximately eight working hours of power per charge, 15 selectable speeds, and allows you to program up to two focus presets. It incorporates a start/stop record trigger button and small LED screen that shows focus depth.