This is an EXCELLENT frother!!! It is very light-weight, yet is very powerful. Once you put in two AAA batteries (with the positive side facing the frother) and screw the end back on, you simply click the black button and BAM! The frother goes incredibly fast and does what it needs to at a very fast rate. My other frother was bulkier (as it took more batteries) and did not nearly go as fast as this...and it was more expensive! This is an EXCELLENT buy! It is so small and very high-quality and effective. It also comes with screws and a wall mount, which I opted-out of doing, but it is really nice and awesome that it came with! The directions that come with this are also very clear and straight-forward. I really like everything about this frother. I used this to make my Matcha tea (which you all know I am obsessed with now), and it worked very fast and did an excellent job. It created the foam that I desired at a much faster than my other, more-bulky frother. Very impressed with this product.
Wanna check this out for yourself? Here's a link to the product listing on Amazon:
http://www.amazon.com/dp/B00V8D9A36