IMPORTANT !This is a third party, non-genuine replacement remote.It is not made by Hormann.compatible with Ecostar RSC2, RSZ 1 & RSE2.It does not replace BS (BiSecur), for example RSC4-BS,RSZ1-BS, Liftronic 700 series 2, Liftronic 800 series 2. Not suitable for other models even the same frequency 433.92Mhz.Compatible type (learning type), no doubler.It must be programmed directly on the receiver/motor.Easy programming like the original.Frequency 433 MHz, rolling code type, working distance of approximately 50 meters in open space.Simple and durable design, easy to carry with keys.Battery, manual and key ring included.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.