The KangerTech KBOX 70W Battery TC Mod can support up to 70W and now supports TC mode using Ni and Ti wire. The KBOX 70W TC Mod also has a capacity 4000 mAh built in battery. There is now no need to swap out batteries back and forth due to the built in battery. KBOX 70W TC Mod is also easily charged via a Micro USB Cable .The KBOX 70W TC Mod is made out of a lightweight zinc and aluminum alloy material for easy transportation and access. The KBOX 70W TC Mod offers a powerful and versatile vaping experience in a compact temperature control device.