100% brand new and durability Features: 1. High replication accuracy and efficiency, faster data replication speed, and less prone to code loss. 2. The error of the replicated data code is extremely small, and it resists replication oscillation. 3. It can replicate four different types of chips separately, improving work efficiency, bringing you a brand - new remote control experience and great convenience to daily life. 4. It is the size of a keychain and can be hung on the car key without causing any extra burden. 5. It is equipped with a buckle for easy carrying. 6. It is suitable for retractable doors, sliding doors, swing doors, road gates, rolling doors, garage doors (components), smart lights, remote control switches, alarms, keyless entry systems, door openers, etc. Note: It is only a controller. The other accessory examples in the picture are not included! Specifications: 1. Model: AK - 079KB 2. Material: Metal 3. Type: Controller 4. Voltage: DC 12V 5. Current: 10mA 6. Frequency: 315MHz, 433MHz 7. Remote control distance: 50 - 100 meters / 164.04 - 328.08 feet 8. Color: Black and silver 9. Size: 56.0×32.0×10.0 millimeters / 2.20×1.26×0.39 inches 10. Quantity: 1 piece Precautions: 1. There is no retail packaging. 2. Due to manual measurement, an error of 0 - 1 centimeter is allowed. Please confirm that you don't mind this before placing an order. 3. Due to differences between different monitors, the picture may not reflect the actual color of the item. Thank you for your understanding! Package content: 1 controller