I have a desktop set up, but I used the iDSD micro BL, when I walk around the house or in the office. I used to use my phone with Tidal, but every time I got a call I had to quickly disconnect the phone from the iDSD or take the call holding the phone and iDSD stacked.
I am not sure if someone else has also come with this idea but this is what occurred to me:
I have a chromecast audio, I think this is such an amazing and inexpensive little gadget to connect to the micro idsd and stream music from tidal, Spotify, or your own music files from a NAS. The only problem is that the chomecast has to be connected to the wall to get power. It is such a tiny thing, but it is not portable. So this is what I did, just for fun. I went to Amazon, looked for the thinnest battery pack that could find, bought a very short 3.5 to 3.5 digital Toslink cable, a very short USB to micro usb cable and some velcro. This is a $30 - $35 project if you already have a chromecast audio. If not, it is only $35 for the chromecast or less if you find it on sale.
I admit, it is a little bulky, but honestly, I love this setting. A wireless streaming iDSD/Chromecast combo. Here are some pictures of the result of my fun project:
Note: Chromecast audio plays 96KHz/24bit, so it is perfect for TIDAL's MQA (Master Quality Authenticated) music.