AUX2 Mini Bluetooth Receiver for car w/Bluetooth 5.1,Dual USB, Quick Charge 3.0,Enhanced Bass, AUX 3.5mm Car Kit w/Car Stereo Microphone for Hands-Free Calling, Siri&Google Assistant

I have owned several of these car kits now. I returned 2 of them because the mic / sound quality was terrible. Then got the Pavlov audio cable which is actually quite good but got 'borrowed' by my son.I replaced it with this Rexing kit and happy I did. The music from Spotify crystal clear coming through this unit and most impressively a microphone handle calls near perfectly. I have a deep voice which is hard for most BT devices to pick up without distorting, but is no problem for this unit, even with background noise like traffic, heater, and sunroof noise.Unit also uses the latest Bluetooth while the belkin which i also considered only uses 4.1 which is grossly outdated.My only critic is that its not a regular Prime purchase (still free shipping, just takes extra 2 days) so I skipped over it by using prime as a filter, first few orders. This would No doubt be a top seller if it was. This is the BT kit to buy!