Eye Sprayer Dry Eyes SPA Relieve Mesh Nebulizer Handheld Eye Moisturizer Eyeshade Atomizer Eye Strain Steamer Home Use

I didn't know that it also has batteries. So it doesn't charge via USB; you have to keep it plugged in if you don't want to use batteries. I thought it could be charged and then used wirelessly. It works well, although it gets cold and I was more interested in something warmer for my eyes. For the price, it's okay.