Features: Featuring cutting edges frequency hopping technology for unparalleled signal stability and interferences resistance. This 4 button industrial remote is housed in ABS material and power by 2xAA batteries, ensuring long performances even in the toughest environment. Suitable for professional in construction, agriculture, and manufacturing sectors who demand reliable and secure wireless control over their heavy duty machinery. Whether operating a Hoists, winch, hydraulic Cranes, ventilation system, or motor equipment, this remote controller ensures precise and effortless control for enhances productivity and safety. Boasting a high load capacity of up to 30A per channel, making it the perfect partner for your industrial needs. Specifications: Component:ABS Type:A/B Color:Yellow/Black Coding format: A: AK-K220411 B: AK-K231202. Working frequency: 420~450MHz (frequency hopping) Battery type: 2xAA 1.5V batteries. Modulation: AK-C240407 Signal frequency: 420~450MHz (frequency hopping) Working temperature:-20-70 Size:Approx.145x97mm/3.81x5.7inch Package Includes: 1 Set Remote Control note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual of the item.