* Adopts 12V DC motor,it can continuously work for 500 hours,save-electricity,high efficiency. * Adopts electronic orientation,no accumulated error,accurate and reliable. * No journey limit.positions and directions can be set by remote controller,very easy operation,no need to climb up windows to adjust. * Auto-memory while power off time,so there is no need to program position once again when power on. * Stop and change direction arbitrarily in mid-way,auto-stop while reach the ends. * In RF mode ,it will not be interrupted with each other while 6 million users program at the same time. * Remote control has double modes:IR&RF,can be changed arbitrarily;can control 5 groups of curtain motors separately or at the same time.No need for other connective wire or optional accessories;can be connected with home intelligent controlling system. * IR mode motor can be ordered:equip IR receiver,can realize IR control.