The OMP Hobby M2 EVO is the latest evolution of the M2 from OMPHobby. It's slightly bigger and with the following updates highlights from the V2: Increased blade length to 190mm, rotor diameter of 434.5mm Longer tail boom All new visual design fitting with OMP's new line Larger tail motor and rotor for quieter tail operation More rigid main frame with lower parts count Larger main motor, perfectly matched to drive the new main blades FBL rotor head for improved control characteristics Larger 3S 750mAh battery Specs: Main Motor: SunnySky V4-II Tail Motor: SunnySky R1-II Servos: Metal gear, polymer case, digital Main Rotor Diameter: 434mm Tail Rotor Diameter: 89mm Flying Weight: Approx.335g Dimensions: 434mm72mm138mm Battery: 3S 750 mAh Flight Time: Maximum flight time 10 mins - 4 mins for extreme 3D manoeuvres NOTE: Bind-&-Fly aircraft come equipped with all on-board electronics and still require a compatible transmitter for operation. Please check the Needed to Complete to make sure you have everything you need to get up in the air! Includes: (1) M2 EVO BNF Electric Helicopter (Orange) (1) 3S (11.1V) 60C 750mAh LiPo Misc. Spare Parts Needed to Complete: (1) OMP 2.4GHz Radio -or- RadioMaster w/4-in-1 Protocol Support (1) 2.4GHz Receiver for use with Spektrum or Futaba Radios DSM2 or DSMX Remote Satellite Receiver Futaba S.Bus Receiver System (1) Compatible LiPo Battery Charger