Not happy with this product! Does not match my expectations. Buttons wank, it stops unexpectedly, batteries absolutely not hold a charge (even with good batteries, it does not hold), burnt taste (despite quality resistors change), gurgling, the fireplace Clearo is not so centered leak anything goes! I had to use about ten hours in all and for all, so it repulses me! In addition, it is very very big, you can not use it with the 18650 battery. I recommend it highly!