Glad I tried these !
Have been a satisfied user of the Banglijian behind the ear hearing devices for a while, and decided to try these in-the-ear devices because of Covid.  The mask, the sunglasses, and the hearing devices all hanging on the ear was just too much.  Found these to be a joy. The amplification of sound seems much greater, and its nice to have the small charging case to carry them around in.  There is a learning curve of course of determining which tip does not cause squealing feedback, and playing with the settings to see which volume is best.  One of the devices stopped working about a month in - but was immediately replaced by emailing the very helpful customer service people directly. Would highly recommend these.
Rating: 4 stars