Product never used, packaging damaged during transport. Unopened product, repackaged in our warehouses, in perfect working order, warranty available. 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 small in size, it is made of sturdy ABS and aluminum, it has a neat and modern design, and the sliding key cover prevents accidental presses, it is supplied without a battery (27 to 12 V) which is replaceable without causing the loss of stored codes. This product is supplied without instructions, to program it, it is very simple to place the remote control in front of the one to be duplicated about half