Product Information ** Cartridge NOT INCLUDED ** Compatible with: 510 Tanks The Pro-Dose from Dovpo and Catskill Hemp Co is one of the most well built 510 cartridge devices on the market. Its also loaded with features like auto voltage adjustment for optimum performance, a top OLED screen for dosage timing, dual oil and wax pre-heating, and the ability to adjust the height of the cartridge. Variable Voltage: 3.2V to 4.2V Battery: 750mAh Capacity: 0.5g / 1.0g Cartridges Size: 80mm x 45mm Charging: Type-C Display: 0.42" OLED Top Screen with Dosage Timer, Optional Flip Screen Pre-Heat Function: Yes Thread: 510 Adjustable Cartridge Height Includes: 1 x Catskill Hemp Co. Pro-Dose Device (NO CARTRIDGE) 1 x Type-C Charging Cable 1 x User Manual This product and all products on this site are intended and sold for legal purposes only.