This is a Plantronics USB Headset Training bundle. This Bundle includes two (2) Plantronics HW510 Noise Canceling Headsets, one (1) Plantronics Y Training Cable, and one (1) Plantronics DA70 QD to USB Adapter to plug into your computer. Plugging the Plantronics DA70 into a computer via USB, it allows for the Plantronics Y Training cable to plug into 2 headsets so you can have 2 audio sources available on one USB port.
 

HW510 has the latest in wideband VoIP and Ultra Noise Canceling technology, the Plantronics EncorePro HW510 Headset delivers the highest level of audio performance even in noisy environments. The Ultra Noise Canceling microphone filters out excessive background noise and increases call clarity even more. Designed for over the head use, the Plantronics HW510 the headphone can be worn on either ear.

Key Features:

• 1 Training Cable, 2 Quick Disconnect HW510 headsets and 1 USB Adapter Cable

• Plantronics QD (Quick Disconnect) - allow user to walk away without taking headset off

• Wideband Audio Sound

• Ultra noise canceling headset microphones

• Stylish, lightweight design enhances user experience

• Business-critical reliability and all-day wearing comfort