Rotorama Calypso 3 " is a small and durable freestyle frame for 3" propellers. The Calypso 3" weighs less than 39 grams and is designed for both analog and digital image transmission systems. The Calypso has 4mm thick carbon arms that hold not only 2 M3 screws, but also side locks at the front. This keeps the arms firmly in place. The front sides are made of 3mm thick carbon to securely protect the camera, and 3D printing can be conveniently mounted on the top, whether it's an HD camera or GPS holder, and the top and bottom plates are 2mm thick. Two 20x20mm stacks can be placed in. The Caddx Vista or hybrid HD camera can be conveniently placed in. The stacks are placed in oval slots instead of holes, so the position of the stacks can be moved so that they both fit comfortably in the frame. There is a distance of 24mm between the upper and lower plate, which is plenty of space for all components, and any antenna holder is placed on the rear pillars.The package includes a holder for the SMA pigtail or antenna supplied with the Caddx Vista.