I purchased this for working at home, communicating with customers. This is exactly what I needed and my life has improved drastically since I purchased it. I have had no sound complaints from the other end. I have found that I cannot even leave the room without the handset without hearing loud static, so I make sure to keep the handset nearby or clipped on. I also notice a very small amount of static (on my end only) when plugging something into the wall or using the microwave. The batter lasts me about 8 hours, so if I work an exceptionally long day, I have to find another source. Overall, this works exactly as I need it to. The headset is so comfortable I barely notice it, and I have never been able to wear over-the-ear headsets comfortably.