1.Receiver module 2.rf wireless receiver module 3.Frequency:315/433.92MHZ 4.Voltage:DC 5V+/-0.3V 5.Current: 16mA Features: It is designed with small size, beautiful exterior , Sound wave resonator (SAW) is used for stabilizing frequency, It is applied for wireless alarms, wireless controlling devices, etc.Using High stability, SMT components, SAW (sound wave resonator)Optional for encoding ...