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 layouts For 2/4-button layouts For 2/4-button layouts Note: If your remote control model is not listed, do not purchase this item. This item is not compatible with all 40.685MHz remotes. 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 display differences may cause slight variations between the color shown in the image and the actual product. Measurement may vary by +/- 1-3 cm.