The dose pen rechargeable system includes a controller and charger. dosist formula pods sold separately. All dosist formula pods work with the dose pen rechargeable system. The dose pen rechargeable system uses precise time-controlled measurements delivering a 2.5 mg dose each time. The controller by dosist has a fully ceramic vaporization chamber housing a ceramic wick for faster, more efficient saturation. It features medical grade stainless steel vaporization coil that generates a more even and precise temperature ramp. Using superior connectivity between pod & controller via strong magnets for the most consistent and reliable power connections available. Fully rechargeable: charging cable included with dose controller purchase Fully interchangeable: for use with any dosist formula pod, sold separately dosist formula pods are available in 200 doses, sold separately