Super small PPM receiver. At first I thought it was a satellite but its not. You bind it by grounding the signal wire and then power it up. Then it will enter bind mode, then you do the bind process with your transmitter. I bought 2 of these and my builds (250 and 180 quad) are now super clean. Flew them a little indoors to test them out and the it works fine. Tomorrow I'll take them out to the field and do some FPVing.
So remember, these are not satellites. They are just a PPM only receiver. Pricing is good and I won't hesitate to recommend them. 2 Thumbs up!