Review on Avantree TC419 Bluetooth 5.0 Transmitter Receiver with Enhanced Range for TV & PC Audio, Home Stereo Speakers, aptX LL Wireless Adapter for Headphones, Optical & AUX RCA Connectivity by Gilbert Pfaff

So far I've tried this device as a BT transmitter that works with both a pair of Sennheiser Momentum 3 wireless headphones and Sennheiser True Wireless Earbuds is coupled. Both support APTx/BT 5.0 which works great with this transmitter. However, the quality of the Bluetooth connection is miserable and keeps breaking off. As some others have complained, the connection drops and emits a hiss at least once a minute and sometimes more. And even when I'm standing right next to the transmitter or even a few meters away. I know there is no problem with either the headphones or the interference as both Sennheiser have no problem connecting and staying connected to my Android phone. stable connection. In fact, by using my phone instead of this transmitter, I can be in multiple rooms before losing connection intermittently. Not with this device. Literally 3-5 meters and the connection keeps dropping. These antennas are clearly for demonstration purposes as the transmitter must either be weak or not get enough power to send a strong enough signal. It is very sad that the Bluetooth transmitter built into the phone is literally 10 times better.