Blade Revolution 155 CP RC Helicopter RTF 86T Spur Gear (1) 3 4S 2200 3200mAh LiPo Battery Spool Parts (1) 3 4S 2200 3200mAh LiPo Battery with IC3 Connector (11 the High Torque 330 provides noticeably faster turning speed and works great with TSM™ equipped vehicles It also includes additional features including nearly two dozen “Next Step After a Trainer” (Skill Level 2) aircraft and variants plus 4 flying sites fields that are unlockable reward content after you fly the trainer models for just 2–4 hours 4GHz transmitter can be used with other Bind N Fly® (BNF) and BNF Basic aircraft after you learn to fly the Revolution 155 successfully