You can adjust the temperature level on your Wave by using the light bar or the Wave 1 app.
Using the light bar, press and hold the blue side (for cooling) or the red side (for warming) for 5-10 seconds or until it reaches your desired temperature level. The light bar will flash blue or red when it's reached the maximum available level of cooling or warming.
Using the app, you can drag and drop the blue dot for cooling or the red dot for warming until you reach your desired temperature level:
