Counter Rotation System: An idea for indoor flight helicopter
Kit Contents:
Factory Assembled Helicopter
Transmitter
AC Mains Charger
Li-Po 7.4V 1000MAH
Spare main Rotor Set
Specification:
Size: L470*W180*H215MM
Main Rotor: 310MM
Channel: PPM 4CH
Frequency: 35/72MHz
Battery Sort: Li-Poly 1000MAH 2/3AAA 7.4V
Weight: 240G