I got a mighty vibe for my birthday and ever since then it has been amazing. I am quite into minimalist living and I have a Light Phone 2 (I will get to why all this is important). The light phone 2, as fantastic as it is at doing everything that I need and nothing more (no internet access), it has no access to my music that I love listening to. I searched for a few answers but the one that stood out was the Mighty Vibe. This little tool holds ALL of my spotify playlists and has room to spare. you will not run out of space on this little machine. the bluetooth works wonderfully even if a bit slow to connect it does connect each and every time flawlessly and you can pair multiple different devices to it. You do need a phone to download music onto it and to initially pair the output devices to it but after that unless you want to update a playlist, you dont need a smartphone at all. I personally used a phone of someone I know to set it all up (since I dont technically own a smartphone) and it is great. the only down side to it is the battery life. the Mighty lasts about a day if you are an avid music listener. two days if you dont listen to music as often. great product overall and works much better than I thought it would. a bit overpriced but it does come through with all the features advertised working as advertised or better.
I bought these for my 8 year old and 6 year old and they love them. It was a way to get them off the screens and away from my own iPod. They work really well and they can use them no bother. Recommended.