The Vlocity speed is driven by the new Select Force technology and an electronically controlled anti-jam propeller. Select Force allows you to adjust the force that the loader places on the paintballs. The Select Force is adjustable from off to 7 levels from low to high to allow the player to set the desired force based on the type of paintballs being used. Select Force allows the player to maximize out-of-the-gate speed without breaking paintballs. Once a jam is detected. the electronically controlled anti-jam propeller will automatically reverse and reset using the exclusive dual vision system. The VLocity also incorporates reprogrammable software to allow you to customize the Select Force and anti-jam settings. The VLocity also features a light weight and small profile. offers a large capacity of 200 paintballs. a flip-cap spring-loaded lid. and ViewLoader? quality you can trust.Requires two 9-volt batteries (not included).