Walkera V120D02S 3D RC Helicopter RTF with Devo 7E Tx Brushless Version The V120D02S is a high performance 3D helicopter with outrunner brushless motor Kit includes everything you need to get in the air Devo 7E allows for Telemetry - Temp and voltage Shaft driven tail blade with high speed tail servo Optional/Upgrade Metal Rotor Head available (not included)