Features: 100% brand new and high quality 400 signal channels, stable performance of wireless control signals, can reach to 100m. All of the keys are momentary, with unique dust-proof structure and special waterproof treatment, high structural strength, durable and comfortable. Easy to install, waterproof, drop-proof, shockproof and dustproof. It can work outdoors and can work in rain, snowy and dusty weather. Also can work in harsh environment, such as high oil, high humidity and high dust, etc. Bridge Crane/Overhead Crane/Mobile Crane/Tower Crane/Truck Crane/Double-speed Electric Crane/Chain hoist/Electric winch/Hoist bench, Single-speed Vehicles; Conveyors, CNC, Generator Start-up, Coal Mine Equipment, Concrete Pumps, Grab Bucket and other Mechanical Heavy Equipment. Our customer service can help solve all the problems. Package Includes: 1xRemote Control (with Battery) Specifications: Material: ABS Plastic Size: Approx. 190x85x55mm/7.48x3.35x2.17inch Color:As Picture Shows note: 1.Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you place order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!