Product review (5 stars): Cool Gadget
I recieved this product for testing and review purposes.
This mini humidifier is really cool and convenient.
The design is really nice and it work as soon as you assemble it. 3 steps and plug it in and place it in a cup of water and it's ready to go.
Unfortunately, in the instruction manual it says you can not  add an essential oil to it or the pen will not function and ruin.