Features: Upgraded motorized camera dolly with scale indication, 3 speeds adjustable (2.4cm or s 2.6cm or s 2.8cm or s) support move to the opposite direction Wheel angle 180°adjustable, you can achieve creative circle route or straight line movement. An perfect auto dolly for time lapse or macro or low angle video shooting. The Body is made of high quality plastic material, can support up 3kg or 6.6lbs load, Pocket size and lightweight, easy to carry. The wireless remote control can change speed and direction and make a pause, effective distance 6m or 19.7ft the dolly itself has control keys too. 1 or 4" to 3 or 8" convertible screw is suitable for most camera or smartphone holder. Built-in 1800mAh rechargeable li-ion battery can offer up to 6hrs service time With USB charging port and charging cable, 4 light indicators showing charging status(red-green), battery power(flashing) and speed(normal on). Specifications: Brand: Andoer Model: L4 PRO Color: Black or Grey(Optional) Body Material: Plastic Camera Screw: 1 or 4" to 3 or 8" Convertible Screw Maximum Load Capacity: 3kg or 6.6lbs Speed: 2.4cm or s 2.6cm or s 2.8cm or s(Camera Weight Must Be 1kg) Dolly Battery Life: 6hrs Dolly Full Charge Time: 3hrs Dolly Built-in Battery: 3.7V 1800mAh Rechargeable Li-ion Battery (Included.) Remote Control Effective Distance: 6m or 19.7ft Remote Control Battery: CR2032 Battery, 3V(Included.) Remote Battery Life: 18H Remote Standby Time: 2 Years Item Size: 12.2 x 10.6 x 3.8cm or 4.8 x 4.2 x 1.5in Item Weight: 296g or 10.4oz Package Size: 13.7 x 13.7 x 7cm or 5.4 x 5.4 x 2.8in Package Weight: 495g or 17.5oz Note: Camera and smartphone are not included. Package List: 1 x Dolly with Battery 1 x Remote Control with Battery 1 x USB Cable 1 x Connector 1 x Wrench 1 x Wheel Ring 1 x User Manual(English or Chinese) Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-YJL official store