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 Dolly 1 x Ball Head 1 x Charging Cable 1 x Conversion Screw 1 x Remote Control 1 x Hex Wrench 1 x Spare Rubber Ring 1 x Manual Note: 1. Do not turn the drive wheel with force 2. Do not use more than 3KG load‑bearing range 3. When the wireless remote control is not in use, please take out the battery 4. Do not use on uneven surfaces 5. It is necessary to adjust the center of gravity and fix the camera before turning it on.