Plantronics EncorePro HW720D Digital 700 Series Headset.  HW720D is a Binaural (double-ear) headset with comfort and clear audio.  The Plantronics EncorePro HW720D delivers style and performance to the everyday office and call center workers. Super ightweight materials and leatherette ear cushions provide all-day comfort. Precision-fit, noise-canceling microphone along with hi-fi wideband response ensure crystal-clear audio communications. 

Key Features:

• Binaural Style (covers both ears)
• Important:  Compatible with 6-pin devices such as Plantronics MDA526 amplifier,  Plantronics 6-pin DA90 Audio processor  and Plantronics MDA490 only call if you're not sure)
• Reinforced, lightweight headband provides durability
• Extendable microphone ensures precise microphone positioning in front of your mouth
• Advance noise canceling microphone means customers never miss a word
• Low-sitting microphone arm stays clear of wearers’ peripheral vision
• Soft leatherette pads
• High-frequency wideband audio support
• Digital 700 Series

Old Poly part # 78716-01

New HP part # 783N4AA

Important Note: Not compatible with the traditional 4-pin Quick Disonnect devices call 877-999-3838 for assistance.

For more detail information see Plantronics HW710D datasheet 

Accessories for the HW720:

Plantronics Clothing Clip for SupraPlus, Encore Pro Headsets

Plantronics EncorePro HW720 HW301N Leatherette Ear Cushions

Plantronics EncorePro HW720 HW301N Foam Ear Cushions

Plantronics EncorePro Headband Support Pad