Model: MC4014-330KV Config: 18N24P Motor size: 44.8L x 34.5 mm Weight: 149g KV(rpm/v): 330 Max Power Continuous: 750W Max Current: 25A Max Efficiency Current: 3 - 10A >84% Battery: 4 - 8s LiPo Prop: 13 x 6.5 - 16 x 8 Internal resistance :85mohm