[Shirazmn]

Yesterday I was looking for interesting ways to waste my money and I found this on Shein:
https://www.shein.co.uk/Hailicare-Portable-Breast-Massager,-Vibration-Massage,-Heat-Compression,-5-Modes,-3-Adjustable-Levels,-Adjustable-Strap,-Suitable-For-Different-Bust-Shapes-p-60436108.html
The link may not open for everyone, so I am attaching the pictures from the page.

I bought it because I thought that heat and massage are important factor in breast development, and it's also cheap... 
As far as I understand, the "massage" is actually just vibration, but for 10 euros it was worth a shot. Also, it seems portable so I could wear it while doing other stuff, which is convenient (I bought some wearable milk pumps and they are a true revelation).
I should receive it in about 10 days from now.

What I expect will go wrong:
1) The device is obviously made for a woman's chest, and mine is wider. So I expect the cups to be too close to each other to accommodate my boobs.
2) The band is 100 cm which should be just enough for me but it may not be. It looks like it's fastened with velcro, so I could always add some, but it's better if it just fits
3) The vibration may be entirely pointless and it may not heat up the area enough. So, it may not help at all.

But I'll come back with more details once I have tried it.

[Sara_181]

I know the feeling, seeing something and wondering if it is a good/bad bet.
But you just don`t know unless you try it, perhaps it will be wonderful, perhaps it will be one of those "what was i thinking" moments. But either way you must tell us all what the experience was like...
Best of luck    x

[Curvyguy]

Be interested to see if it has any results as you see them on amazon too.

[Denisem]

I have been using these breast massagers for a while now, I do quite like wearing them. While I don’t believe that they make a tremendous difference, I do think that they help firm up the bust with very regular use. I usually wear mine for an hour or so daily. The heating function works so it’s good to wear after applying topical lotions to help them absorb. I am not sure about this particular model shown here, but the ones I have you can remove the massage unit and slip it inside your own bras. Even if the massage is a bit weak, it is pleasant to use and as I said, the heating does help. Hope this helps.

[Shirazmn]

So, this has arrived. 
It has a total of 9 settings in combination between 3 levels of massage and3 levels of heat. It just about reaches the back of my body to fasten, so it's an actual 40 inches (1 metre) long.
The cups do fit over my "moobs". If I had better rounded boobs, a bit more centered, I would probably fit in the cups a little better but I can't complain.

The massage is nice. It goes through a few different settings and it's not boring. 
The heat is hot. The medium setting is a comfortable warmth but the hot setting feels like I am cooking chicken breast. I like it, but after 2 cycles on the hot one I had to lower it to the cold one.
The battery so far has lasted for almost one hour, which is good.
The only annoying bit is that there is no way to keep the heat on without vibration. It's not noisy but it could be a problem to wear it when going out for errands.

It's definitely worth the £10 I spent for it. 
When I have a bit more time next week, I will alternate this with the milk pumps, to see what effect this will have on freshly stretched nipples. 

For now Ia menjoing it. On we go with the 3rd cycle...

[Denisem]

Try just pressing the ‘heat’ button only, you may have to click it a couple of times to get to the heat setting only. Yes, it can feel hot, but it will assist in absorbing your topical creams or serums if you do use these as part of your regime. By pressing only the heat button you bypass the vibration function, this is what happens on the ones I use. Enjoy!