Update, 2023-12-22: After Linsoul support contacted me about the unit I received due to the issues reported in my previous review, they confirmed that the unit was in fact defective and were able to assist me in getting a replacement. Upon receiving it today, I can confirm that this unit works and sounds much better, so I've switched my rating accordingly. Really happy to finally have a wireless option to use my IEM's with, with no discernible loss in sound quality in doing so.
Original Review:
Massively disappointed with this bluetooth adapter. It only plays audio in mono (Individual left and right audio plays on both earpieces, regardless of which side I pick), and certain frequencies cause it to crackle. I've tried it with two phones and a PC, and it sounds the same on all of them. Would not recommend.