They say the 2B is the most powerful power box they have and in my honest opinion they are right. Much more powerful than I thought and the adjustability the 2B provides is INCREDIBLE! I can adjust the unit in so many different ways which can bring so many different pleasurable sensations in so many ways. Big bonus that it comes with its own carry case to keep it all neat and packed and the fact that the 2B is upgradable as well is pretty awesome. I'd definitely recommend the 2B to every electro lover and a must to everyone's collection. If you don't have the 2B yet trust me you are missing out!