The Maud-Dib is Magic Flight’s concentrate only vaporizer. With a 3 sec heat up time, the Maud-Dib is huge favorite amount users. Like other Magic Flight models, to heat up the unit you just stick the NiMH Glyph battery (rated at 2000mAh) in and push. Your essentially completing the circuit from battery to unit by the pressure from your finger. Simple vaping.