Feature: 1. Wide Applications: Compatible with various digital cameras, sports cameras and mobile phone video shooting (the mobile phone clip should be purchased separately when using the mobile phone). 2. Three Speed and Two Modes: Supports three speeds for driving, supports forward and backward two modes, and can adjust the angle to travel in a straight line or various curves. 3. Applicable Scenes: Supports work on sliding rails, and can also work on a level ground tabletop. Equipped with a ball head for adjustment of various viewing angles. 4. USB Charging Port and Battery: Use the USB charging port for charging, and the power bank car charger can be used to charge it. Built in 1800mAh battery, the maximum power can last for 6 hours. 5. 1/4 Inch 3/8 Inch Screw Holes: Universal 1/4 inch, 3/8 inch screw holes are complete, installation expansion is not limited. Maximum load bearing 3KG, to meet your daily shooting needs. 6. Time Lapse and Track Shooting: Time lapse shooting, track shooting, easier and more convenient. Foldable storage, compact and easy to carry. Specification: Item Type: Camera Dolly with Ballhead Color: Black Material: Aluminum Alloy Weight: Approx. 645g / 22.8oz Dolly Speed: First Gear Speed: 1.4CM/S Second Gear Speed: 2.4CM/S Third Gear Speed: 3.0CM/S Maximum Load: Approx. 3KG / 6.6LB Wireless Remote Control Distance: Approx. 6M / 19.7FT Maximum Continuous Use Time: 6 Hours Body Battery Charging Time: 3 Hours Remote Control Continuous Working Time: 18 Hours Normal Use of The Remote Control: 60,000 Times Car Battery: Built in Lithium Battery 1800mAh Remote Control Battery: Built In Button Battery CR2032 240mAh Ball Head Type: Spherical Ball Head Interface: 1/4 Inch Screw, 3/8 Inch Screw, 1/4 Inch Screw Hole, 3/8 Inch Screw Hole Applicable Models: General Purpose Applicable Scene: Video Shooting. Package List: 1 x Dolly1 x Ball Head1 x Charging Cable1 x Conversion Screw1 x Remote Control1 x Hex Wrench1 x Spare Rubber Ring1 x Manual Note: 1. Do not turn the drive wheel with force2. Do not use more than 3KG load‑bearing range3. When the wireless remote control is not in use, please take out the battery4. Do not use on uneven surfaces5. It is necessary to adjust the center of gravity and fix the camera before turning it on.