I'm looking for suggestions for a decent car FM transmitter that can also be used for making/receiving calls etc.
The Roidmi Bluetooth Car Kit looks good but is only apple/android so something similar to this would be good
http://www.roidmi.com/en/lcindex
https://www.pbtech.co.nz/product/MPPMIX0002/Xiaomi-Roidmi-Bluetooth-Car-Kit-with-FM-Transmittefor use with
Intended for use with Lumia 640 running Win phone 10