SATISFACTION CRITERIA: All our product offer return policy or money back services, if you have any problem about your purchase, pls communicate with us by Email, we are always here to make everything right for you.Practical Uses: Wire less crane remote allows for broad application on the remote control of crane, car tailgate, electric hoist and so on. The transmitter adopts high-performance materials for durability, with a good performance circuit board.Reliable Works: Crane button control box has 500,000 times electrical life as well as 1,000,000 times mechanical life, for long use. Rated Working Current: 5A.Better Control: Crane remote controller will add more flexibility in controlling the crane to meet your various working needs. Dustproof and rainproof, the rubber joint sleeve makes the switch ideal for outdoor control and work.Sturdy Housing: The ABS housing is very sturdy with ageing, also very comfortable for manual usage. Remote control is IP65 Class product, performing excellently in harsh environments such as high oil pollution and high humidity.