This is a case for the Dronetag BS with the default antennas. It helps to protect the UFL connectors and holds the antennas in place with 3.5mm antenna tube cut to length. Everything should be a snug fit. The case covers the battery port but that can always be cut out and you could always just wire the battery to the other port although your milage may vary. Printed out of PLA with no supports and a 0.4mm nozzle. Could be printed out of TPU but for how I have it mounted in the drone it made no difference.