![Amazon.com: Plantronics - CS540 Wireless DECT Headset (Poly) - Single Ear (Mono) Convertible (3 wearing styles) - Connects to Desk Phone - Noise Canceling Microphone : Electronics Amazon.com: Plantronics - CS540 Wireless DECT Headset (Poly) - Single Ear (Mono) Convertible (3 wearing styles) - Connects to Desk Phone - Noise Canceling Microphone : Electronics](https://m.media-amazon.com/images/I/71qVtQnxDzL.jpg)
Amazon.com: Plantronics - CS540 Wireless DECT Headset (Poly) - Single Ear (Mono) Convertible (3 wearing styles) - Connects to Desk Phone - Noise Canceling Microphone : Electronics
![Amazon.com: Plantronics - CS540 Wireless DECT Headset (Poly) - Single Ear (Mono) Convertible (3 Wearing Styles) - Connects to Desk Phone - Noise Canceling Microphone : Electronics Amazon.com: Plantronics - CS540 Wireless DECT Headset (Poly) - Single Ear (Mono) Convertible (3 Wearing Styles) - Connects to Desk Phone - Noise Canceling Microphone : Electronics](https://m.media-amazon.com/images/I/31x850kNd8L._AC_.jpg)
Amazon.com: Plantronics - CS540 Wireless DECT Headset (Poly) - Single Ear (Mono) Convertible (3 Wearing Styles) - Connects to Desk Phone - Noise Canceling Microphone : Electronics
![Cisco Compatible Plantronics Wireless - CS540 Bundle with Electronic Remote Answering (EHS) - 84693 |For Cisco VoIP phones: 8841, 8851, 8861, 7821, 7841, 7861, 7942g, 7945g, 7962g, 7965g, 7975g, 6945 Cisco Compatible Plantronics Wireless - CS540 Bundle with Electronic Remote Answering (EHS) - 84693 |For Cisco VoIP phones: 8841, 8851, 8861, 7821, 7841, 7861, 7942g, 7945g, 7962g, 7965g, 7975g, 6945](https://cdn11.bigcommerce.com/s-dc251/images/stencil/1280x1280/products/820/3127/plantronics_cs540_bundle_cisco_compatible_wireless_headset_7975__76395.1415324784.png?c=2)