I am completely satisfied, I use it in the office on a daily basis, on a Panasonic phone and it is very comfortable on the head and its sound quality is excellent. It is a very good choice!

I use it on a Panasonic telephone device in an office, I am completely satisfied with the sound quality as well as its construction. I highly recommend it to anyone in need of a headset with a 2.5 mm jack

We bought it for KXDT521, very easy to set up, powerful sound, you can find it with a simple Google search easily.