Control Lights, TVs, Motors, Fans, Cameras, Video signals, Audio signals, electrically operated Doors/ Locks/ Windows. Note:433mhz and 315 mhz are available ,433mhz will be sent out if there is no demand on frequency ! Be sure to leave a message when you order ! Transmitter Channel: 8 CH Remote Control Distance:100--1000M ( Ideal Distance without any block and signal interfere , it would rise and fall about 10%-90% with the block and signal interference.) Encode: EV1527 Frequency:315/433MHz Operating Voltage: DC3V 2pcs AAA Operating Frequency:315/433MHz Size:155mm48mm25mm 2.Receiver Decode: Learning Code,Fixed Code Control Type: Toggle, Momentary, Latched Power Supply (Operating Voltage): DC 12V / 24V Relay: 10A 250VAC 10A 125VAC 10A 30VDC 10A28VDC Work Voltage Range of Relay: DC 0-28V State current: 10 mA Load current: 5A Sensitivity:-107 dBm Operating Temperature:-40C - 80C 2.Function (Original Setting is Momentary, Change it by yourself.) 1).1-8 Toggle/Self-lock :Press 1 button==>on,press the same button again==>off (Press key 1 to learn) press key 1, 1 relay works, press key 1 again, 1 relay stops working.press key 2,2 relay works,press key 2 again,key 2 stops working.3-8 key works like this. 2) 1-8 Momentary/Jog:Press and hold==> on, release==>off (Press key 2 to learn) press key 1 and hold,1 relay works,loosen the finger.1 relay stops working.2-8 key works like this. 3)1-8 Latched/inter-lock:press 1 button ==>on,press other button==>off (Press key 4 to learn) press key 1,1 relay works,press key 2, 1 relay stops working,2 relay works.3-8 key works like this. 4)1-4 Toggle 5-8 Momentary (Press key 8 to learn) 3.Clear Code and Learn Code 1) Learn press the learning button 1 time,the learning LED turns on,then press the transmitter key (choose the 1 2 4 8) to learn.the indicator flashs 1 time.It means learning sucessfully. pacote inclued: A: 1 x Receiver(with cover) 1 x Transmitter(not with battery) B: 1 x Receiver(with cover) 2 x Transmitter(not with battery) C: 1 x Transmitter(not with battery)