Durable and easy to install. Fine workmanship and classic design. Specifications: Button color: Grey Rated voltage: 12V 23A Installation: Wireless Compatible with electric telescopic door remote controls, gate remote controls, alarm remote controls, and similar devices. Wireless transmission distance: 10-150 meters (open space) Frequency: 40MHz, 40.685MHz Compatible Models: For 40.685MHz remotes with grey buttons For 2/4 button configurations For 2/4 button configurations For 2/4 button configurations Note: If your remote control model is not listed, do not purchase this item. Even if your remote operates at 40.685MHz, do not buy if not explicitly listed. Material: ABS Color: Black gray + gray Package Contents: 1 x Garage Door Remote Control Note: The package includes only the items listed above. Other accessories are not included. Light reflection and differences in display screens may cause slight variations in color between the product image and the actual item. Measurement may vary by +/- 1-3cm.