Review on Avantree DG60 Long Range Bluetooth 5.0 USB Adapter: Superior Sound Wireless Dongle for PC, Mac, PS4, PS5, Linux - aptX Low Latency, Headphones & Speakers Compatible by Doug Layman

Tl;Dr: This is a great long range transceiver for Linux machines and other systems that have trouble with BT audio. I have a Linux desktop running Ubuntu 20.04 LTS. USB audio, 3.5mm audio, HDMI, and DP audio all work fine, but I've never gotten Bluetooth audio to work in my life. It turns out that some Bluetooth chipset vendors (like Broadcom) don't provide full drivers and firmware for Linux, so some things don't work either (or in my case don't work at all). The embarrassing factor is that I live in an apartment complex with LOTS of 2.4GHz interference from wifi, bluetooth, fluorescent lights and other devices. I received this as a last resort to get my BT headphones to work with this system. Here's my rating after 30 minutes of use: 1) Right now, the assortment on this map is sacred! Got a DG60 with large anti-interference antenna and it was worth it! I can maintain a stable audio connection on the other side of my apartment - it goes through 3 walls and with a junction box in the way! 2) In Apt X mode (blue LED flashes 2 times every 5 seconds), the sound quality is quite good. . I haven't done analytical listening yet, but I don't intend to use Bluetooth headphones for this purpose either. I have nicer cans for that :) 3) In talk mode the music/sound quality drops noticeably BUT for a Zoom/Discord/VoIP call it's more than enough. I did a record and playback test and listened to a recorded sample in both talk mode and music/apt x mode and it worked. I had a few setup issues initially, but switching from a USB port on the front of the system to a port on the back of my system cleared everything up. I'll attribute it to USB chipset weirdness or interference, as those ports also struggle with Logitech Unifying receivers. I'll try to update this review after longer use (including some games!) so I can be a bit more thorough.