I saw this on the BRTC website and saw a youtube video on it and HAD to buy one to test one out for myself. Here is the link to the video of the vibrating sponge in use. Looks amazing right??? I was sold but unfortunately when I got it in hand it was a very big disapointment. First off, the product is very poorly made. It’s made of a very light weight plastic and does not look durable at all in fact it feels cheap. The sponges look like they are pretty dense and made of pretty good material. It comes with two little watch batteries and I just couldn’t imagine a lot of power coming out of two little watch batteries so I was very skeptical and for good reason. The opening for the battery is so cheap looking, it’s just an opening with a small square silicone cover on it that can easy be pulled out and lost if not careful. I have shown a picture below of the product with the cap on and the back where the battery goes in. Now for the performance of the product. It vibrates very little and when pressed against my skin with BB cream on it, it doesn’t really do much. There is not enough movement and vibration for the gadget to do much. I put my BB cream on one side of my face with the BRTC smart auto sponge and the right side using my Beauty Blender sponge for comparison and my Beauty Blender still wins for coverage and blending. I really wanted to love this smart auto sponge but I give it an FailSave your money and get a Beauty Blender folks~!