Features:
a) The voltage can be adjusted through turning around the knob either in right direction or in left direction. Adjustable voltage output range: 3.3V~5.0V.
b) High-safety, high-capacity, high-magnification and high-stability.
c) Collects multi-functions in short circuit protection, over-charge and discharge protection, atomizer protection.
d) Mini iJust is charged through USB port. One can take puffs while it is being charged.
Three types of capacity:650mAh, 900mAh, 1300mAh
Two types of thread:510 thread, eGo thread
