" Compatible frequency: 433 MHz, fixed code Copiable codes: up to 4 codes Not compatible with rolling code remote controls Remote control batteries are not included (27 A - 12 V) This product is delivered without instructions Three remote controls that control up to 4 different codes, they are self-programmable and compatible with most remote controls (such as Faac, Came, Nice, etc.) with a frequency of 433.92 MHz with fixed code. Extremely compact, it is made of sturdy ABS and aluminum, it has a neat and modern design, and the sliding key cover prevents pressure accidental, it is delivered without battery (27 to 12 V) which is replaceable without causing the loss of stored codes. This product is delivered without instructions, to program it, it is very simple to place the remote control in front of the one to be duplicated at about half a centimeter distance. Simultaneously press the button to be duplicated on the original remote control and the button to be programmed on the