USB Rechargeable High Power Electric Protein Mixer - Portable Electric Vortex Mixer and Shaker Bottle

Overall wonderful product. After having initial reservations, I am extremely pleased having purchased this product. It is the perfect product for mixing protein shakes without having clumps of the powder left unmixed (as long as you follow the instructions! I messed up the first time). It's a quality product; however, my only criticism of it is that the mouth spout is a little small.

Edit: This is broken after a few weeks. Wouldn't buy again..This is a good product. I bought 2, home and office. They work well. My only notes regard the power supply, and the mouth.The provided cord is a usb connection, it comes with no wall plug, and the other end is a pin style connector instead of a micro usb so I can't use any of the hundreds of other chargers I have for it. The mouth isn't quite large enough to take a natural drink from without 'glugging'.The charge lasts a good long time, it mixes my powder very well, and has easy clean up. I have recommended this cup to friends, and so, here I recommend it to you.

I use this several times daily. I'm careful with it, but it gets a lot of use. Still working after several months. It's very powerful in the context of mixing powders. I wouldn't try to use it for anything else though.I've used a number of whey and pea proteins. These usually mix instantly, but some stubborn powders that are prone to clumping work better if you start by filling the cup halfway with liquid, start mixing, and slowly add the powder.

Easy to use... you can charge it in your car it comes with a USB cord. Love it. But if you want to add fruit it's not powerful enough if you just want your protein shake and water or juice it's great

1. Cheaply made, literally opened the bottle out of the box and the lid fell and the side thing to grip the cup broke...2. Still decided to atleast use the mixing thing, it does well with light powdered stuff, but when i put my 2 scoops of whey protien the thing wouldnt even spin.3. This product may be good for light powders, crystal light, pre workout, BCAA etc. 2 scoops of whey and it wont spin!

Really cool. A little loud when you first turn it on and then it quiets down with a good vortex and then silent with the lid on. The bad is that the motor barely lasts 30 seconds before it starts to slow down and then stop. It seems that the powder still gets mixed in well enough but it would be cool if it would spin for a longer period. Also, I only fill it to about 8 oz and the vortex reaches the rim, wouldn't really recommend putting more than that unless you want a mess.

I started a protein shake diet and this cup is working perfectly so far. It usually only takes about 30 seconds to mix the shakes and they get fairly thick by the end. The motor slows down but still works very well. The cup is 16oz total and I make them 8oz at a time.

Great product when it works. I've bought three of these. The first one stopped working after 3 days. I thought maybe I had gotten it wet so I bought two more (bc when it works it's great). I've been very very careful when washing to make sure it doesn't get wet. But it still seems to be defective. I turn it on it gets stuck on, I try to turn it off it just keeps going and vise versa. Not impressed.