Features 1. Operating conditions of the remote control: operating frequency 433mhz, 12V 27A battery requirements. 2. It's easy to use, copy any fixed code remote controller, save the trouble of replacing specified remote controller. 3. Strong privacy, especially suitable for home remote control copy. Small size and lightweight, easy to carry. 4. Application: garage doors, motorcycles, car alarm products, home security products, short-range wireless remote control products, industrial control products. Specification Material: Metal, Plastic Color: Black Size: 6.8 x 1.7 x 1.4 cm Weight: 20 g Working voltage: DC12V (excluding 27A battery) Working current: 10 mA Operating frequency: 433MHz Modulation mode: ASK (AM) Launching distance: 50 m Package Include: 2 Remote Control Duplicator