1、Wireless remote control smart car with ballhead is compatible with various digital cameras, sports cameras and mobile phone video shooting. 2、The car supports three speeds for driving, supports two modes of forward and backward, and can adjust the angle to travel in a straight line or a variety of curves. 3、Supports work on the slide rail, and can also work on the level ground tabletop, equipped with a ball head can be adjusted for various viewing angles. 4、Use USB charging port for charging, power bank, car charger, etc. can be used for charging. 5、Built‑in 1800mAh battery, maximum power can last 6 hours, compact and easy to carry. 1 x Dolly1 x Ballhead1 x Remote Controller1 x Charging Cable1 x Conversion Screw1 x Rubber Ring1 x Wrench1 x Instruction Item Type: Camera Dolly with BallheadColor: BlackMaterial: Aluminum AlloyDolly Speed:Gear 1: 2.4cm/sGear 2: 2.6cm/sGear 3: 2.8cm/sMaximum Load Capacity: 3kg/ 6.6lbRC Distance: 6m/ 6.6ydMaximum Use Time: 6hCharging Time: 3hRemote Controller Use Time: 18hRemote Controller Use: 60000 TimesDolly Battery: Inbuilt 1800mAh Lithium BatteryRemote Controller Battery: Inbuilt 240mAh CR2032 Button BatteryBallhead Type: Ball ShapeInterface: 1/4in Screw, 3/8in Screw, 1/4in Screw Hole, 3/8in ScrewCompatibility: UniversalFor Scenes: FilmingWeight: Approx. 596g/ 1.3lb