The key functions by computer interface setting mode. Up / Down can be set as to whether mutual inhibition, switches and other functions. The battery voltage warning device, automatic low battery shutdown circuit. 1 receiver with 1.65m cable. This item is in the category "Business & Industrial\Material Handling\Hoists, Winches & Rigging\Lifting Machine Parts, Rigging\Lifting Machine Remotes".The seller is "indusmodern" and is located in this country: US. This item can be shipped to United States.