It is a revolutionary Personal Micro-Vaporizer (PMV).  The principle is much like an electronic cigarette, but far more versatile.  The zenpen systemically delivers vaporizable compounds without the negative health effects associated with smoking. Designed without switches or buttons, it's ready when needed. 

Although this can vary based on your vaping habits,  we regularly see about 300 perfect-puffs per filled cartridge.

zenpen does not manufacture, sell or ship pre-filled cartridges.  Pre-filled essential oil or herbal extract cartridges are only produced by licensed distributors and only available at retailers in regions which permit the use and distribution of these products.

Although this can vary based on your vaping habits, the battery is developed to last approximately the duration of the filled cartridge.  The battery is designed to be recharged over 1000 times before needing to be replaced. Charging the battery is simple. When the indicator lights on the pen flash, signaling a low battery, simply screw it on the the supplied USB charging block. The device should be fully charged in 3 hours from dead, and the indicator light on the charging block will go from red to green when full.  Normally 15 min on the charger will supply enough power to use the device when you need it or until it is convenient to charge it fully.

Yes. Although the cartridge is meant to be disposable, it can be filled by taking the following steps: Remove the mouthpiece. Remove the blue silicone plug. Use a small funnel or fine enough tip to fill with the e-liquid of your choice. Reassemble in reverse order. **PLEASE NOTICE THAT WE WILL NOT BE RESPONSIBLE FOR ANY LOSSES, DAMAGES, OR ISSUES, PERFORMANCE OR OTHERWISE, RESULTING FROM REFILLING THE CARTRIDGE YOURSELF.