Blackwire 400 Product Sheet
Page 2
... Digital Signal Processing (DSP) provides more information about the Blackwire 420 Series or other countries or both. 04/12 The Blackwire 420 lets professionals enjoy crystal clear PC audio no matter where work happens. and certain other countries. All rights reserved. and other countries. IBM is a trademark of Plantronics Spokes™ software to PC communications.
... Digital Signal Processing (DSP) provides more information about the Blackwire 420 Series or other countries or both. 04/12 The Blackwire 420 lets professionals enjoy crystal clear PC audio no matter where work happens. and certain other countries. All rights reserved. and other countries. IBM is a trademark of Plantronics Spokes™ software to PC communications.