Dragon Rider Drak 600mW, 5.8G Hz, 40 channel wireless AV transmitter with 5V and 7-19V DC output.
First of all, Drak video transmitter provides clean and sharp images great for FPV flight. This product features 40 channels, including those of R band required for a lot of events.
By long press of the "Channel" key it can change to A B E F R bands, and short press to change frequencies that is indicated by numbers 1 to 8. The bands are indicated by A B F R LED lights respectively, and band E with all four lights on. Drak transmitter can accept a wide range of DC input from 6 to 20V, meaning 2S to 4S LiPo can be used directly to power up the unit. It also has a 5V DC output and a 7-19V output that will be the same as input voltage.