Plantronics Blackwire USB Series Headset Matrix

	C310	C310M	C315	C315-M	C320	C320-M	C325	C325-M
Wearing Style	Monaural	Monaural	Monaural	Monaural	Binaural	Binaural	Binaural	Binaural
Folds Flat	✘	✘	✔	✔	✘	✘	✔	✔
Audio Quality	Wideband	Wideband	Wideband	Wideband	Wideband Stereo	Wideband Stereo	Wideband Stereo	Wideband Stereo
SoundGuard Protection	✔	✔	✔	✔	✔	✔	✔	✔
Microphone Noise-Cancelling	✔	✔	✔	✔	✔	✔	✔	✔
Optimised for Microsoft Communicator 2007	✘	✔	✘	✔	✔	✘	✔	✔
Headset Finish	Foam Ear Cushion, Standard Adjustable Headband	Foam Ear Cushion, Standard Adjustable Headband	Foam Ear Cushion, Standard Adjustable Headband	Foam Ear Cushion, Standard Adjustable Headband	Foam Ear Cushion, Standard Adjustable Headband	Foam Ear Cushion, Standard Adjustable Headband	Foam Ear Cushion, Standard Adjustable Headband	Foam Ear Cushion, Standard Adjustable Headband

	C510	C510-M	C520	C520-M
Wearing Style	Monaural	Monaural	Binaural	Binaural
Folds Flat	✔	✔	✔	✔
Audio Quality	Wideband Stereo Echo Cancelling	Wideband Stereo Echo Cancelling	Wideband Stereo Echo Cancelling	Wideband Stereo Echo Cancelling
SoundGuard® Protection	✔	✔	✔	✔
Microphone Noise-Cancelling	✔	✔	✔	✔
Optimised for Microsoft Communicator 2007	✘	✔	✘	✔
Headset Finish	Foam Ear Cushion, Padded Adjustable Headband	Foam Ear Cushion, Padded Adjustable Headband	Foam Ear Cushion, Padded Adjustable Headband	Foam Ear Cushion, Padded Adjustable Headband

	C710	C710-M	C720	C720-M	C725	C725-M
Wearing Style	Monaural	Monaural	Binaural	Binaural	Binaural	Binaural
Folds Flat	✔	✔	✔	✔	✔	✔
Audio Quality	Wideband Stereo Echo Cancelling	Wideband Stereo Echo Cancelling	Wideband Stereo Echo Cancelling	Wideband Stereo Echo Cancelling	Wideband Stereo Echo Cancelling	Wideband Stereo Echo Cancelling
SoundGuard® Protection	✔	✔	✔	✔	✔	✔
Microphone Noise-Cancelling	✔	✔	✔	✔	✔	✔
Optimised for Microsoft Communicator 2007	✘	✔	✘	✔	✘	✔
Headset Finish	Foam Ear Cushion, Padded Adjustable Headband	Foam Ear Cushion, Padded Adjustable Headband	Foam Ear Cushion, Padded Adjustable Headband	Foam Ear Cushion, Padded Adjustable Headband	Foam Ear Cushion, Padded Adjustable Headband	Foam Ear Cushion, Padded Adjustable Headband
Bluetooth	✔	✔	✔	✔	✘	✘