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. Different Ways to Control the WIFI Module. [APP Remote Control] You can control the connectted home appliance in Tuya or smart life APP anywhere and anytime.Such as light, electric kettle, electric rice cooker, electric curtain, 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 ,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] Compatible with and Assistant, you can use 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. [Group Control] one phone can control Multiple smart device. You can add the wifi module and other smart device in a group,and then turn on/off all smart device at the same time. Color:White Material:plastic Package Contents: 1 * Controller Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.