Features 1,3 Speeds Adjustable: The motorized camera trolley with scale indication supports 3 levels of adjustable speed(1.4 cm or s, 2.4 cm or s, 3.0 cm or s), ultra low noise and stable movement. 2,Flexible to Use: 180° adjustable side wheels angle allows you to achieve circle route or straight line movement, very suitable for time lapse or macro or low angle video recording. 3,Large Capacity Battery: The auto video trolley has a built in 1800mAh battery that can offer up to 6h working time and can be conveniently recharged by the included USB cable. 4,Wide Compatibility: Comes with a phone holder and a mounting screw adapter, and supporting 3 kg or 6.6 lbs load capacity, the auto video trolley can work with most smartphones, action cameras, digital cameras, DSLR cameras, etc. 5,Convenient Remote Control: Come with a wireless remote control, you can change the moving direction and speed easily by the remote control conveniently and there are control buttons on the trolley also. Specification Body Material: Plastic and Metal Camera Screw: 1 or 4 inch to 3 or 8 inch Convertible Screw Maximum Load Capacity: 3kg or 6.6lbs Speed: 1.4cm or s, 2.4cm or s, 3.0cm or s Trolley Battery Life: 6hrs Trolley Full Charge Time: 3hrs Trolley Built-in Battery: 3.7V 1800mAh Rechargeable Li-ion Battery Remote Control Effective Distance: 6m or 19.7ft Remote Control Battery: CR2032 Battery, 3V(Included.) Remote Battery Life: 18H Item Size: 12.2 x 10.6 x 3.8cm or 4.8 x 4.2 x 1.5in Item Weight: 242g or 8.5oz Package List 1 x Trolley1 x Remote Control1 x Wrench1 x Wheel Rings1 x USB Cable1 x Mounting Screw Adapter1 x Phone Holder1 x User Manual 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.