1. Illustration of Each Mode a) After 5 seconds, the display will turn off and selection sounds will be disabled. b) After 1 hour, the fan speed will decrease as the room temperature stabilizes. c) The Tower fan will begin to automatically adjust the fan speed according to the fluctuating room temperature as you sleep and wake up. 2. Vesync App Functions 3. Connect with Amazon Alexa or Google Assistant a)Download the VeSync app and Log In or Sign Up. b)Use the VeSync app to connect your smart tower fan to Amazon Alexa or Google Assistant. Please follow the in-app instructions to set up your voice assistant. What's in the Box: 1 x Smart Tower Fan 2 x Base 1 x Plastic Nut 1 x Remote Control 1 x Power Adapter 1 x Quick Start Guide 1 x User Manual.4.Troubleshooting Please make sure that the screws are aligned with the flat surface of the motor shaft during installation, not the arc surface, otherwise the air output will be reduced!