Kastwave Bluetooth 5.3 Aux Adapter For Car, 3.5Mm Auxiliary Wireless Audio Receiver, Receiver Car Music/Hands-Free Calling, 12H Battery Life, Car/Home Stereo (1 Pcs)

Tws is really bad because it fails most of the time and you have to do it everytime the device turn off, so i have an elaborate speaker setup at home where i have two amazing analog sound systems i want them to work together so i had one bluetooth receiver then used wires and small amp to distripute sound to both aux inputs on both systems, so these javing tws function seems to have solved the problem, yet everytime i turn on my tv or try to connect my phone i have to turn borh devices on then pair them together first which fails 90% of the time then connect my tv or phone, so since they fail to pair together there is no tws function which is thier selling point as even cheaper blutooth devices are better than them that has no tws