Helimax Axe 100 CX Helicopter TX-R SLT FEATURES: Rotor Head: Coaxial design, with counter-rotating main blades Flybar: Durable, flexible plastic for maximum flight stability Battery: 3.7V L INCLUDES: Tx-R Heli-Max Axe 100 CX Helicopter with Battery, Charger and Instruction Manual REQUIRES: 4-channel transmitter with SLT (heli programming not required)