Features: 1) R/C high-tech helicopter, 3 channels, stable hover and full 3-D flight, 3 motor, it can fly up and down, forward and backward, turn right and left 2) Revolutionary coaxial rotor technology, completely stable in flight, flight range up to 20 meter - 30 meters, up to 8 minutes flight time 3) 3.7V 300mah lithium polymer battery is installed in the helicopter 4) 3D flight, go forward, left and right 5) Rear rotor stabilizer for controlled turns 6) Hover trimming tab on controller stable hover and full 3-D flight 7) 3-channel radio controller 8) Helicopter size: 23 x 19 x 12.30cm 9) Charging time: about 30 minutes 10) Helicopter size: 23 x 23 x 11.50cm Inner packing: Color box size: 74 x 35 x 80cm Outer packing: 12pcs/carton Carton dimensions: 74 x 35 x 80cm Volume: 0.207cbm G.W.: 14.00kg N.W.: 12.00kg Conveyance: Qty/40\'\' HQ: 3, 960pcs Qty/20\'\' FCL: 1, 632pcs