This is an adapter cup used to install an upgraded speaker into your Taranis Tx. It's designed to pull out the stock one and install a larger, clearer 36mm speaker obtained from the east bay and far east :-) Check Out item # 310952191496 It should not require support turned on to print. I used hot glue to tack the adapter into the Tx and then the speaker into the adapter. (Ok, so here's the crazy thing, you can feel the air movement from the low range this speaker puts out. It sounds great and cost next to nothing to upgrade.) When you install be aware of the two centering posts (left and right) and their height. This adapter is designed to avoid interference with them and your new speaker so you will not need to modify your radio by clipping them. Just make sure that when you install the adapter it is level. I used a piece of scrap foam to insure no interference. You can us a scrap piece of plastic or card, ...