2.【Handwheel Controller】: It connects to the wireless receiver motor for fine focus control, with a built-in 1400mAh battery that lasts for 20 hours, and can last for 40 hours when working with the wireless handgrip. It feature a power failure memory function to save recalibration, A-B point settings, a low-power 0.96" OLED display, a replaceable marking disk, and vibration warning.
3.【Wireless Handgrip】: It fits handwheel controller well for dual control of the motor, and allows you to control start/stop on your camera using an optional cable. Mount it onto your rig for either right- or left-hand configurations using the included handgrip adapter. It's powered using a separately available LP-E6 battery, and it can also power the receiver motor using a USB-C cable.
4.【Two Wireless Receiver Motors】: It's compatible with the handgrip and handwheel controller. It features a clear 0.5" OLED display that provides calibration data and a standard 0.8 MOD cine gear to fit a wide variety of DSLR and cine lenses. When powered by PD power source, it comes with a strong torque up to 0.5 Nm.