The Pax 2 has a beautiful and sleek design. It is one of the smallest, lightest and consistent vaporizers out there. Engineered with an efficient convection style heating system, the Pax 2 is sure to out perform many on the market. The unit utilizes a Lithium-Ion Battery that recharges in 2 to 3 hours and takes less than a minute to fully heat up. The Pax 2 has an internal accelerometer which detects motion and puts the unit in stand by mode to save on battery life.