[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. [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]: NEWTRY 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.