Created in collaboration with iconic Los Angeles rapper and entrepreneur, B-Real, the Dr. Greenthumb's x G Pen Micro+ Battery is powered by an 850 mAh rechargeable lithium-ion battery with haptic feedback and USB-C charging. Unique smart-chip technology provides controlled and consistent heat application that will not burn or overheat precious concentrates. Also equipped with Cartridge Recognition Technology, the Dr. Greenthumb's x G Pen Micro+ Battery applies distinct power outputs that result in the optimal vaporization experience when used with the Micro+ Tank.