PromixxOriginal Shaker Bottle - Battery-powered for Smooth Protein Shakes - BPA Free, 20oz Cup (Black)

I’ve had several of these cups. The first one I bought in 2008 and it still works. Its capacity is small though. So I looked for other ones. I’ve purchased several but they all die or have issues within a year. I’ve had this one for a few years now, and it’s still the best one I’ve ever had.

I would definitely recommend this product and will definitely buy again

I start each day drinking creatine and collagen powder. Since both are difficult to fully mix and settle to the bottom of the glass, I'm pleased with the shaker; it allows me to continually mix the powders as I drink which means I waste less of the supplements. I look forward to taking this when traveling since it works with two AA batteries and its size is packable. It's not as robust as an electric mixer, but because it's so easy to use and clean, I now drink my morning supplements routinely without thinking about the hassle of having to clean up after.

Mixes protein well, easy to use, easy to clean, worth the price. Very Durable, still good after over a year.

I got this because I was tired of that stuff that stays at the top of my shakes (protein). I was skeptical about it, but listen.... It works. Depending on how much powder you put into it, it can make the mixer slower but it still works. It's not a large cup so you wont be able to fit the 3 gigantic scoops recommended on the big bag.What it does fit (i use one giant scoop which fills about 1/3rd of the cup), it mixes very well.I don't only use it for shakes, I use it for tea, instant coffee (cold) and pretty much everything. It's my go to cup now. It's battery powered and I used amazon rechargeable batteries. It's very easy to clean. Fill it up with water and soap and turn it on for a minute and it does a pretty good job.There's not a lot else to say about this cup. It does a great job at mixing it completely. Way better than my spoon did and it makes my shakes so much easier to drink. I no longer have to chug down chunks. That's exactly what I was looking for.

Bought this years ago and it was great. But clearly the model has changed for the worse. It was so hard to get the battery cover off in order to put batteries in. Nothing should be that difficult.

I bought this for my teenage son for Christmas. He absolutely loved it….until it started leaking about a week or so ago. He can no longer use it because as it blends, it continually leaks the liquid out and down the sides. This does not have anything to do with how the lid is screwed on. It is a neat product and very convenient, however it didn’t last long at all.

I bought this forever ago and I used it a few times but I forgot to clean it out and I don’t think I’ve touched it since. It’s probably all disgusting now to the point I might throw it away but I honestly forgot I had it. As for the product, it works fine, I’d imagine the spinner isn’t too powerful so don’t throw in a bunch of solid stuff expecting it to blend but it does what it says it will.