Type Y4 Multirotor Frame Kit 550mm Wooden Frame can achieve hovering, cruising, and other Test flight elements. It can be applied for Research and Development for Flight Controllers. Features: Laminated Wooden construction for the best result in glitches Wide range of motor and power options Required: - Recommended Propeller 8~14 #34; Propellers - Recommended Battery 3S~4S ~2200MAh LiPo - Recommended Motor 2210~2215 series - Recommended ESC 18~40A OPTO - Recommended Multi-Rotor Flight controller eg. (QQ Super, or CC3D, Naze32, Naza-Lite, APM, Open Pilot Platforms FCs) - Recommended 4ch radio (6ch recommended for FPV and FC use) - Recommended FPV gear (optional) What you Get: 1 x Y4 Wooden Frame Kit 550mm