Specification Turret Cannon Move Up and Down, Move All Direction Start-up/extinguish set Full scale R/C function Realistic smoking function Simulation motor start-up sound, engine sound, machine-gun sound, cannonball sound. Emulation action effect.The sound can adjust. Powerful Motor Airsoft Gun (Hop-up system),bb shoot function Approx Operating Time 30 Minutes Factory Assembled - READY TO RUN Dimension: L 38cm 15" x W 17 cm 6.8" x H 19cm 7.5" Include M4 Tank Remote Controller 7.2V rechargeable battery Transformer/Charger BB bullet Aerosol Target Tank operator English manul Color Box Why call Premier version? This tank already have following pure steel gear box and metal track installed, you do not need buy metal upgrade kit seperately.Save your time! It is preinstalled !!