AIO VAPE PEN SYSTEMS (Integrated Tank Base)
They apply replacement coils (As the term "AIO" suggests), are small, light, comfortable to carry, AIO Vape Pen Systems have a pen shape, a single power button and are very simple to use!
The majority of them have a built-in battery. Their difference from Vape Pen Kit is that they apply integrated tank base atomizers (The base of the exclusive atomizer is integrated into the device, e.g. Aspire PockeX AIO Vape Pen System).