Selectable Channels. The PocketWizard Plus X Transceiver features 10 selectable channels for minimizing interference.

Improved Build and Control Layout. The Plus X’s improved button layout and large, backlit, rotating dial make it easier than ever to operate. Its new side-profile design and internal antenna make keeping visual contact with your subject much easier.

Auto-Sensing Technology. Like its predecessor, the Plus X has PocketWizard’s Auto-Sensing technology for automated switching between transmit and receive modes. You can also override this feature and use the Plus X as a dedicated transmitter or receiver.

Expandable Signal Range. While the Plus X has a 1,600-foot working range, depending on environmental variables. It’s possible to reach sync speeds up to 1/250 sec. with focal plane shutters and 1/500 sec. with leaf shutters, with a maximum triggering speed up to 14.5 fps.

Backwards Compatibility. The Plus X is backwards-compatible with all previous PocketWizard units, including strobes with built-in PocketWizard receivers.

Connectivity Options. The Plus X is triggered via hot shoe when attached to a camera and sync cord when attached to a flash. You’ll need one PocketWizard for each flash unit, as well as one for the camera.

Will you be working with shoe-mount flashes?
We send one PocketWizard-to-PC cord with each Pocket Wizard. This will allow you to connect it to a Canon 580 EX II or Nikon SB900 flash (or other flash that has a PC cable input). The Canon 480EX II, Canon 580EX, Nikon SB 600, and Nikon SB 700 flashes do not have PC inputs.

Will you be working with a studio strobe kit?
We send one PocketWizard-to-1/8-inch mini cord with each PocketWizard. If you need a different/additional cord, you’ll need to rent it separately. If you don’t rent the proper cord, then your PocketWizard won’t connect to your lights. If the PocketWizards don’t connect to your lights, they won’t flash. If they don’t flash, you’ll have wasted a lot of money.

Just so we’re clear: We don’t know how you’re going to hook up your PocketWizards, what other equipment you’re using them with, or what types of cables you may already have. We’ll only send the cables and PocketWizards you order. If you meant to order something (but didn’t), thought it came with the equipment (it doesn’t), or assumed we knew what you’d need (we don’t), you’ll be using very high ISO on your shoot and we won’t be able to refund you.

https://blog.lensprotogo.com/2017/01/27/use-a-cup-to-learn-off-camera-flash/