Aukey® Audio Receiver Bluetooth 3.0 / Bluetooth Receiver Car with hands-free calling, for headphones, laptops, speakers, stereo and car audio with 3.5mm audio cable, Bluetooth A2DP Technology (Black) (Electronics)
Tested on a home theater system, no worries (thank you the digital amp ...). No loss of connection, may run simultaneously charging. Then tested on a car radio. There, clear difference between the live connection of mobile and bluetooth 3.5mm, which