Wireless remote control for car alarm security system, customized frequency, ... etc .2,RF transmitterDevelop all kinds of PCB with different function .For home /car alarm ,such asASK ,OOK ... ,HCS500,HCS300,HT6P20B,HT6P20A,HT6P20D, EV1527 , PT2240 etc .For order :(1) Accept OEM ,ODM(2) Print logo ... on the case and package(3) Payment Details :For order 30% deposit of the value,balance beforeshippment. ...