... sensitivity 4.Paypal,T/T,Western Union 1.One way car security alarm 2.Two siren remote controller3.CE,High sensitivity4.Paypal ... ,T/T,Western Union. Memory alarm/Trunk release/Power window . Arming/Disarming/silent alarm, Car finding/Stop siren temporarily. Call for ... . Improper closed warning/Abnormal situation warning, Intrusion aler One Way Car Security Alarm System