COOYA USB C to 3.5mm Audio Adapter

It looks exactly like the original Huawei adapter that came with my Huawei Mate 10 Pro. Fully compatible with any kind of headphones and besides of that it is fully compatible to answer calls and talk. Also it allows you to use the Huawei sound effects, that's something that you cannot do with any type C adapter. Very happy with the purchase, recommend if lost you adapter, you will not notice the difference :D

Have to wiggle it when you first put it in the phone to hear the sound.

Only compatible with cheap headphones. Don't buy!

Update Jan 28 2020 I ordered a white one and it didn't have a DAC. You can tell right away based on the length of the USB C connector; the non-DAC is shorter. It's a good cable as long as you don't get one with an onboard DAC. My recommendation is to order the white one if you have a OP6T. Update Jan 22 2020 I just bought a black one, supposedly without a DAC. It has a DAC! I could tell right away as the USB side is longer on the black one than the white one. It sounds thin and pops when you plug in the headphones. I'm returning this and docking a star. Hopefully, if I order another white one it won't have a DAC. Original review: I have a OnePlus 6T and I'm pretty sure this COOYA company is the OEM for the stock OnePlus cable. It looks, feels, and sounds exactly the same. The cable doesn't have an onboard DAC and runs in USB-C audio adapter accessory mode. This means the DAC in the phone is used, which sounds a whole lot better than any $15 cable with a DAC in it. If your phone doesn't support audio accessory mode, this adapter isn't going to work. The reason I bought the cable is because the OnePlus cable is pretty thin and small. I'm worried it'll get lost or break. Same concerns with this one, but at least I have two now!

It did not work

Not great. Two stars because it does produce sound with the OnePlus 7 Pro, but the sound quality is poor and the volume level way too low. Cable is thinner than depicted.

It works perfectly, I like it

Mine stopped working after a month or so but then again I bought used ones so your milage may vary. Dongles are a pain that most of us have to live with but my experience was especially bad. I gave up and got some wireless headphones instead.