Note 3 button 2 button receiver to send randomly The function is the same. Comes with packaging and instructions for use The picture is as follows 2 Channel Inching Relay(Three Working Modes) 1.Remotely give a pulse signal to turn on/off Lights,Lamps and other home appliance. 2.Remotely give a pulse signal to turn on/off Garage Door,Door Access,Sliding Door. 3.Remotely give a pulse signal to control DC Motor,AC Motor to Forward and reverse. Three Working mode Inching mode:Switch on one channel ,the channel will be automatically closed after 0.5 seconds.others channel is same as the channel. Self-locking :Each channel could be switched on/off seperately.You can turn on/off all channels in the same time. Interlocking mode :Switch on one channel , other channels will be switched off automatically. If you need to change the working mode,you need to change it in APP. How to Change the Working Mode The default working mode is self-locking mode. If you need to change the working mode,you can active the interlocking mode or the inching time on the APP. Feacture Two Input Ports You could choose USB 5V port or the screw terminal port to supply power in the input to make the pcb board board work. Dry Contact/Passive Output No matter the power you supply in the input, the output don't have any voltage If you do not supply power in output port, the connectted home appliance can't work, you also need to supply power in output. Status Tracking The device status timely show in the "EWeLink"; Timer Each channel supports max 8 enabled schedule. Different Ways to Control the WIFI Module APP Remote Control You can control the connectted home appliance in APP anywhere and anytime.Such as light, electric kettle, electric rice cooker, electric curtain, etc. RF433 Control The WIFI ModuleType 3,Type 4 support RF433 Frequency,and you can control the WIFI module by fixed code EV1527 RF433mhz remote controller. Mobile Phone Control When you go outside or at home ,you could control the device in your smart phone by 2G/3G/4G Mobile Network or 2.4Ghz WIFI. (Note:The router need to online and the WIFI module need to keep a close distance with the router and keep online in app) Voice Control Compatible with Alexa and Google Assistant, you can use the voice control to turn on/off the connectted home appliances . Share Control One device can control by Multiple phones,you can share the wifi module with your family. Group Control one phone can control Multiple smart device.You can add the wifi module and other smart device in a group,and then you can turn on/off all smart device at the same time. Parameter Input1 :Micro USB 5V Input 2:Screw Terminal port: AC/DC7-32V or ac85-250V Output:Passive Output(Dry Contact) Max.Current:2000W/10A/gang Cutover current 10A Working Temperature: -20 to 70 Working Humidity: 40% to 80% RH WIFI Standard:2.4GHZ, 802.11 b/g/n(don't support 5G) Size:120*38*25mm APP:eWeLink Remote battery:27A 12V/ CR2032 (Not include) Timer & Schedule Set up timing schedules to turn on/off lights Wiring Diagram