FlashQ Wireless Flash Trigger
This is a small, short-range wireless flash trigger. If you need something very small and simple and your flashes will be within 30 feet or so of your camera, this is a very handy little wireless trigger for remote flash. It's very simple and easy to use. It does not support TTL, so it's all manual. You'll need a flash that can be used manually when off the camera. In my case, I was testing it with a Nissin i40 flash which works well in this situation. I posted a video about the FlashQ on YouTube.