I bought 10. Two of them came defective, one had no sound and the other had a stuck microphone button. The microphone is better than the original, but the sound produced by the headset is quite poor. Also, the cables are a bit shorter and require some attention during use as the contacts can get cut off. For their price, they are okay.

The connection with the computer for programming was not possible.
Also, the software I received with a small disk did not contain the corresponding Baofeng model.
I downloaded the "correct" software for this specific model, but it did not recognize the above Baofeng model. No synchronization between the products...!
Total failure! I am forced to program the walkie-talkie by myself.

I bought two and both are terrible, one doesn't even sound and the other barely sounds, I wasted my money. I used them on a Baofeng GT-3TP.

I installed them on baofeng and wouxoun wireless devices, which work great. It has very good audio intensity and the microphone works perfectly without any interference.