The Tycoon Boro mod was born from the collaboration between BD Vape and modder Hirano Design, a very compact 21700 format mod made for Boro type tanks. Works with a 21700 battery (not included). Power adjustable from 5 up to a maximum of 80 watts. Compatible with all Boro type tanks. Pin 510 adjustable. Multiple protections for a 100% secure vape. Informative OLED screen.