1、315-433.92Mhz copying transmitter: duplicate your existing remote controllers for cars, garage doors, gate doors, electric doors and windows, home automation lighting and alarm system, etc. 2、The 4 channel remote control key fob lets you easily copy most remote control fobs. 315-433.92Mhz frequency, bringing you new experience of remote control and much convenience in your daily life. 3、High accuracy of copying and high effective of copying, easy to install and use. 4、Privacy is strong,high accuracy of copying and high effective of copying, faster copy data speed,not easy losing code. 5、Small size remote controller,elegant design and portable. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Dadangjia