A TBS Crossfire 8ch Diversity Rx SMA Clip for use with the Stock Antennas.
Clips on between the two SMA Connectors of the Stock Antennas preventing them from coming loose.
Also has a little hole on the bottom to thread a wire through in order to tie it to the Craft while not in use.
Goes well with the TBS Crossfire 8CH Rx Stock Antenna Bracket 60°.