EPOS Sennheiser SDW 5065 Binaural (double sided) is a dual onnectivity (deskphone or PC) wireless headset that covers both ears for noisy offices.  SDW5065 allows the the headset to use with a deskphone, and softphone (via USB cable, included) on a computer. Sennheiser's dual microphone pickup for optimal voice transmission. Ultra noise-cancelling microphone.  Travel up to 590ft away from the phone (line of sight),  When fully charge, battery last up to 10 hours of talk time. Microsoft Skype for Business Certified.

Key Features:

• Dual-connectivity with a desk phone or Computer (with included USB cable)
• Double ear over the head style.  Help block out background noise.
• Certified for Microsoft Skype for Business
• Connects to desk phone, softphone and up to 2 mobile devices simultaneously 
• Busy light on the headset
• Conference calling or training (allow 3 additional wireless headsets to be sync to the same base)
• 128 bit encryption for security
• Up to 590ft range (line of sight), typical office 180ft range
• Up to 10 Hours battery talk time
• Ultra Noise Canceling Microphone
• Great as a music listening headphone
• headset weight 136 g / 4.80 oz
• Compatible with Sennheisers HSL 10 II handset lifter or EHS

For more details, see Sennheiser SDW 5065 datasheet

Optional Accessories:

SENNHEISER HSL10 II Lifter