One Training set: Poly EncorePro 520 Stereo Quick Disconnect Headsets, DA85 USB Quick Disconnect Adapter and Y Training Adapter with Mute.  All in one bundle to make it easier and more cost effective for you!

EncorePro 520 Stereo Noise Cancelling Quick Disconnect Headsets X 2

• Quick Disconnect feature provides walkaway convenience for agents and trainers
• Stereo style covers both ears to help block background noise
• Adjustable headband and soft foam ear cushions for all-day comfort
• Flexible noise-canceling boom allows optimal positioning for voice clarity
• Visual and tactile positioning guides enable precise and quick microphone positioning
• Wideband audio delivers richer, clearer conversations, while SoundGuard technology protects from noise spikes and listening fatigue, meeting OSHA/Noise at Work regulations
• Designed for the rigors of call-intensive environments, minimizing operational disruptions and costly downtime
• Laser-welded construction and metal joints provide unbeatable toughness and durability
• 2 year manufacture warranty

DA85 USB to QD Headset Adapter with Inline Controls, USB-A & USB-C X 1

• Effortless USB plug and play installation
• Built-in USB-A and USB-C connectors
• At-your-fingertips interface allows you to bypass on-screen call control menus
• Eliminate button-pushing mistakes with recessed buttons that are not accidently activated
• Affordably joins enterprise-class headsets with softphones
• Professional grade USB adapter for commercial use
• Compact size takes up minimal desk space
• Superior noise and echo cancellation
• Poly Soundguard Digital featuring advanced acoustic limiting, including daily noise exposure, G616, and anti-startle functionality
• DA85 cable measures 4 feet 3 inches
• Downloadable firmware updates and unique serial numbers create consistent management of devices
• 2 year manufacture warranty

• Allows two people to hear both sides of the conversation (both people must be wearing a Poly headset with a quick disconnect)
• The Y tail plugs into your existing Poly 10′ coil cord, the trainer plugs into the short end, and the trainee plugs into the long end
• Red inline switch on the cord allows user to switch who speaks – one of the two users is always muted
• Both users can always listen – but only one user can be heard at a time
• Has a manual mute button
• Includes a QD clamp to reinforce the connection where the Y cord connects to the cord
• Genuine Poly accessory