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, etc. Wireless transmission distance: 10-150 meters (open space) Frequency: 40MHz, 40.685MHz Compatible Models: For HORMANN 40.685MHz Grey buttons For HORMANN HSE 2/4 For HORMANN HS 2/4 For HORMANN HSM 2/4 Special note: If your remote control is not listed, do not purchase. Even if your remote control operates at 40.685 MHz, do not purchase if not 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 products are not included. Note: Light reflection and differences in display screens may cause slight variations in color between the image and the actual item. Measurement error allowance: +/- 1-3 cm.