Descriptions: This is the Aether 4, a fully 3D-printed unibody FPV frame for 4/4.5 inch drones, inspired by nature and biomimetic design. Designed by Dr. J. Ma. For details, please refer to the link he uploaded to MakerWorld. https://makerworld.com/zh/models/541413 profileId-466821 Notice:1. It is Empty Frame Kit, not include FC,ESC, Motor, Propeller, VTX, Camera, Battery, etc.2. It Comes unassembled. Need build by buyers. Specifications: Model: Aether 4 Color: Black Wheelbase: 185mm Type: 4/4.5 Inch Frame Material: PETG carbon fiber Size: 160*165*55mm Flight Control Mounting Hole: 25.5脳25.5mm VTX: Any VTX that Pavo 20 Chassis supported. DJI O3, Cadicx Vista or RunCam Link. Weight: 41g Designed by Dr. J. Ma Recommended configuration: FC and ESC: 25.5脳25.5mm Happymodel Super F405HD ELRS AIO 3in1 Flight Controller Motor: DarwinFPV 1504 2300KV 4-6S / 3600KV 4S Brushless Motor Camera: JJA B19 1500TVL 1/3 CMOS 2.1mm Lens Mini FPV Camera Prop: 4 Pairs Gemfan Hurricane 4024 2-blade 4 Inch PC Propeller VTX: iFlight BLITZ 4.9G PIT/25mW/400mW/1000mW/2500mW High Power VXT Battery: Gaoneng GNB 15.2V 3000mAh 120C 4S LiHV Lipo Battery Package included: 1x Aether 4 Drone Frame Kit