This is my second review since the first time I was still waiting for the products. I recently ordered 4 of these with one of them having the battery. When they work they are a nice little device, but unfortunately there's no way to tell how long they're going to last. After 4 days my first atomizer died with the chamber cracking and then one of my replacements didn't work right out of the box so out of the 4 I bought, I have 1 unused left and I just got them in the mail about 12 days ago