EASY INSTALLATION: : To facilitate your installation, we provide detailed description and a color printing instruction manual.HUMANIZED DESIGN: : This hoist crane remote control is equipped with a magnetic key switch that can be used in emergency situations. With the battery voltage warning device, the circuit can be cut off automatically when the voltage is insufficient.APPLICATION: : crane controllers are extensively utilized across various lifting and crane applications, including truck cranes, overhead traveling cranes, lifting cranes, boat elevators, hydraulic tilt trailers, electric hoists, and more.HIGH QUALITY ANTENNA, SWITCH BUTTONS & CIRCUIT BOARD: : The remote control distance is 100 meters, 360 degree barrier-free with strong penetration and no need to aim. The transmitter adopts high-performance metal contact button for durability, with a good performance circuit board. Besides, it is IP65 Class product, performing excellently in harsh environments such as high oil pollution and high humidity.EXCELLENT NYLON CASE: : The wireless remote control is made of PA66 reinforced flame retardant nylon, which has strong ability to against pressure and corrosion.