Review on 🎧 Plantronics CS540 Wireless DECT Headset with Lifter - Single Ear Convertible - Connects to Desk Phone - Noise Canceling Microphone - 3 Wearing Styles by Tonya Zayas

The description says CS540 but two sellers sent me CS540A, European version. The raw box also says CS540 but not the product inside. Plantronics said it would operate in the US but likely jam other signals. I still gave it 5 stars because so far it works amazing and I'm sure that if I can find the right model it will be perfect. I've never seen a headset so well attenuating the sound around you from the caller on the other end of the line. It's comfortable and light. Much better than previous models which included confusing dials with unknown results as to how this affected your sound on the other end. Perhaps the problems faced by the stars are related to the presence of the European version?