Thank you for viewing. Poly Voyager 5200 One new earphone, one used for 3 months, One earphone charging case used for 2 months. A total of 3 items. Voyager 5200 wireless headset equipped with microphone noise-canceling function and adaptive wind smart technology. I liked the good noise-canceling function and the ease of use, such as being able to talk immediately after putting it on my ear, so I bought it including a spare, but I changed jobs and no longer use it, so I am selling it. - Model: Voyager 5200 - Technology: Four-microphone noise canceling - Function: Adaptive wind smart technology - Reminder: Auto mute reminder - Weight: 20 grams