This is a case for a 3DR radio for the IRIS, IRIS+ or other drones so it can be attached to the lid of your MacBook Pro ground station instead of just dangling off the USB wire and lying in the grass being gnawed at by rodents. There is a cut-out for the status LED.Printed on a MakerBot Replicator 2 at 0.2 mm layer height, 50 % infill, 1 shell and no supports/raft.