622c starter kit
This is the best way to get started with the 622c system. This 'kit' includes a single 622c transceiver and the 622c-tx controller. This is the perfect setup to get you going with a single speedlight OFF camera.. It will give you the ability to trigger your speedlight manually, in ttl mode, in high speed sync mode (if your speedlight and camera are capable), as well as use rear curtain sync off camera. Later, when you are ready to add more speedlights to your OCF setup, you simply add a 622c transceiver for each speedlight and you are good to go. They will work with this system seamlessly.
Here is my video on how to use this system -