RC Functions Pitch-axis Roll-axis Collective Pitch Motor Speed Others: Gear switch, 3D conversion, PIT adjustment, and exponential function Specification Main rotor diameter:630mm Tail rotor diameter:145mm Overall length:605mm Overall height:210mm All-up weight:560g (Battery included) Drive system: 380 SD brush motor Battery: Ni-MH 12V 650mAh Features Brand new design for the structure; metal main frame CCPM mode with adjustable pitch system One-way bearing system with autorotation landing structure Main rotor driven by 380 SD motor and tail rotor driven by belt transmission system 7-ch transmitter with multistage electricity volume show on the panel 3D mode conversion switch and adjustable PIT knob