Feature: 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. Specification: Item Type: Camera Dolly with Ballhead Color: Black Material: Aluminum Alloy Dolly Speed: Gear 1: 2.4cm/s Gear 2: 2.6cm/s Gear 3: 2.8cm/s Maximum Load Capacity: 3kg/6.6lb RC Distance: 6m/6.6yd Maximum Use Time: 6h Charging Time: 3h Remote Controller Use Time: 18h Remote Controller Use: 60000 Times Dolly Battery: Inbuilt 1800mAh Lithium Battery Remote Controller Battery: Inbuilt 240mAh CR2032 Button Battery Ballhead Type: Ball Shape Interface: 1/4in Screw, 3/8in Screw, 1/4in Screw Hole, 3/8in Screw Compatibility: Universal For Scenes: Filming Weight: Approx. 596g/1.3lb. Package List: 1 x Dolly1 x Ballhead1 x Remote Controller1 x Charging Cable1 x Conversion Screw1 x Rubber Ring1 x Wrench1 x Instruction