Highlights multi-flying functions 360 degree accurate orientation Omni-directional flight. General Spec Brand Huan Qi Model 852 Type radio control Channel 3C Material metal alloy Gyro support Function Forward, backward, ascending, descending and turn left or right function. Compatibility suitable to fly both outdoors and indoors Battery for Helicopter 3.7V rechargeable lithium battery Battery for R/C 8 AA batteries (not included) Others tail blade with ferromagnetic and high rotary speed motor easy-disassembly battery cover Product Details (without package) Dimension approx. 37*20cm (lenth*height)