On the base of BW8521-4 ,the number of data codes have increased to 91. Save resonator and dynatron.Silicon gate technology.   Introduction:On the base of BW8521-4 ,the number of data codes have increased to 91.

             Save resonator and dynatron.Silicon gate technology.

             Every product includes 66 keys ,single mode.

             Custom codes can't jump line to change .Every data key has 8 custom codes to    choose from.

 Application:The remotes of TV,VCD/DVD player ,satellite receiver and so on