Wireless remote control for car alarm security system, customized frequency, function up to customer. Product Appearance :Item : ... Model : 27A Voltage : 12V Material: Zinc Alloy + ABS Plastic +Silicon Rubber Zinc Alloy + ABS Plastic +S.S Plate+ Slilcon RubberCountry of ... ,such asASK ,OOK modulate mode remote ,gate opener,car cental system and so on .Encoder model : HCS301,HCS201,HCS200,HCS500,HCS300 ...