Remote control for home , car alarm system (transponder), combine with key blank for easily use. Product Appearance ... opener,rolling shutter etc )Key blank : for different brands of car keyBattery Model : 2016 Voltage : 6V Material: Zinc Alloy + ABS ... ,such asASK modulate mode remote ,gate opener,car cental system and so on . Encoder model : HCS301,HCS201,HCS200,HCS500,HCS300,HT6P20B,HT6P20A, ...