Plantrobics Plantronics Voyager 4220 The main unit has minor scratches, and the synthetic leather on the headband has peeled off due to aging, but it can be used normally. The Plantronics Voyager 4200 UC series allows you to easily switch between Windows PC/Mac and mobile devices, so you can stay connected. You can quickly mute using the dedicated button. Furthermore, you will be notified by a voice prompt if you start a conversation while muted. Enhanced voice notification features inform you of connection status, remaining talk time, mute status, etc. The red indicator light lets those around you know that you are on a call. You can hear incoming calls even when you are away from your desk.