Gsedaox Remote Control Universal Garage Door Remote Control 4 Pieces Remote Control Keychain Wireless Remote 1. Copy most fixed code radio remote controls 2. Self-learning remote control, easy to program. 3. Four (4) buttons to control 4 different garage doors or gates. 4. Especially suitable for car alarms, house alarms, panic buttons, garage doors, roller blinds, etc. 5. This 4-channel rolling code remote control can be used with many of the top garage and gate automation systems worldwide. 6. Easy-to-use 4-channel remote control system with anti-theft protection / one-click security helps you control your gadgets, cars, homes and garages. 7. This is a fixed frequency (433.92MHz) remote control for copying 99.99% of common fixed code and self-learning remote controls. 8. Suitable for cars, garage doors, doors, skylights, car/motorcycle alarms, home security products, short-range wireless remote controls, electrical appliances/home automation lights, industrial control products, etc. Product Specifications: Quantity: 4pcs Size: 553015mm Material: ABS Color: Black | White Weight: 144g Package: 4pcs automatic door keys