You can control the connectted home appliance in Tuya or smart life APP anywhere and anytime.Such as dc motor, Linear Actuator, etc. The WIFI Module support RF433 Frequency,and you can control the WIFI module by RF433mhz remote controller. When you go outside or at home,you could control the device in your smart phone by 2G/3G/4G Mobile Network or WIFI. (Note:The router need to onlinet.The WIFI module need to keep a close distance with the router and the wifi module need to online in Tuya Smart Life APP) For Alexa and Google Assistant, you can use the voice control to turn it on/off the connectted home appliances . Share Control One device can control by Multiple phones,you can share the wifi module with your family.So your family member also can control the module. NOTE 1.The package only have 2 channel relay,it don't include the Electric Linear Actuator Motor 2.It can't control the motor speed.it only can control the motor forward and reverse. APP Remote Control You can control the connectted home appliance in Tuya or smart life APP anywhere and anytime.Such as dc motor, Linear Actuator, etc. RF433 Control The WIFI Module support RF433 Frequency,and you can control the WIFI module by 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 WIFI. (Note:The router need to onlinet.The WIFI module need to keep a close distance with the router and the wifi module need to online in Tuya Smart Life APP) Voice Control For Alexa and Google Assistant, you can use the voice control to turn it on/off the connectted home appliances . Share Control One device can control by Multiple phones,you can share the wifi module with your family.So your family member also can control