The Yocan Uni Pro is a remarkable update to the much-loved Yocan Uni cartridge battery mod. The device’s revolutionary variable diameter adjustment fits almost any cartridge, and the height adjustment caters to different capacity cartridges. The 510 Thread Magnetic Connector Ring ensures broad compatibility, while the elegant OLED display allows you to fine-tune the voltage between 2.0V and 4.2V in 0.1V increments. Packaged with the Yocan Uni Pro Cartridge Battery Mod, an instruction manual, a USB cable, and the 510 Thread Magnetic Connector Ring, this product offers unparalleled customization and functionality.