Menu Button Function The Menu button allows you to search through the various settings and select what you want: Volume: Low/Medium/High/Off Timer: 5 to 15 minutes (with 10 being the default setting) Start-Up Timer: 4, 6, and 8 seconds Temperature Measurement: Celsius and Fahrenheit Screen Brightness: Low/Medium/High Precise Temperature Control The precise temperature control feature of the Arizer Solo 2 gives you freedom of choice. It gives you an extra 10 degrees compared to the original Solo and Arizer Air. You can set your Solo 2 anywhere between 50 and 220 degrees Celsius using the Menu button and LED display. The Solo 2 heats up faster than the other units, allowing you to enjoy pure, tasty vapour much more quickly. Vapour Quality Arizer vaporizers are known for their all-glass aroma tubes that produce pure, smooth vapour for users to enjoy. It may be hard to believe that the Solo 2 could improve on that, but as soon as you take your first few draws with the Solo 2, you'll be witnessing those better quality, more flavourful vapours. The Arizer Solo 2 is well built and its top and bottom are sealed with brushed stainless steel. You'll enjoy its well improved battery life, durability, tip-top functionality, and ease of use. The unit is also very easy to maintain.