The Utillian 421 is a compact conduction style dry herb vaporizer with a large battery, a wide range of temperature settings, and airflow control, making it the perfect device for all types of users to enjoy cannabis on the go, regardless of experience level. The 421 has the same curved, pocket-friendly frame that was used for the Utillian 420, but the new internal 2300mAh lithium polymer cell delivers over 30% more run time for roughly 60 minutes of use, with a 60-second ready time. The temperature range for the ceramic conduction herb oven has also been expanded by 20°C with 6 pre-sets at 10° increments instead of only 4, allowing you to enjoy a wider range of flavours: 180°C (new), 190°C, 200°C, 210°C, 220°C, and 230°C (new). The Utillian 421 also includes airflow control, with an adjustable ring at the base mounted next to the micro USB charging port.