Plantronics CS500 Headset Series Matrix

Headset	Style	Noise Cancelling	Wideband	PC Connect	SoundGuard	Lifter	EHS
Plantronics CS510	Monaural	✔	✔	✘	✔	✔	✔
Plantronics CS520	Binaural	✔	✔	✘	✔	✔	✔
Plantronics CS530	Over The Ear	✔	✔	✘	✔	✔	✔
Plantronics CS540	Over The Ear/ Headband	✔	✔	✘	✔	✔	✔