One Training set: Poly Blackwire 5220 Stereo USB Headsets and Blackwire 5200 Training Adapter.  All in one bundle to make it easier and more cost effective for you!

Blackwire Stereo USB-A and 3.5mm Headsets X 2

• Built for UC applications and softphones from Avaya, Cisco, Microsoft and more
• Certified for Microsoft
• Connects to PC and Mac via USB-A
• Also connects to mobile devices and tablets via 3.5mm
• Ideal for all-day use, long conference calls and listening to multimedia
• Cushioned, metal, ergonomic headband is durable and comfortable
• Noise canceling flexible microphone
• Ultra-soft leatherette ear cushions, with super soft memory foam, means all-day comfort
• Total cord length 6.9′
• Speakers fold flat for storage, use durable carrying case (included) for portability
• Simple and intuitive, inline controls let you answer/end, mute, and control the volume of your calls and mute with one touch
• Audio prompts and inline indicator lights tell you about connection, mute, and volume status of headset
• A dynamic EQ feature optimizes voice quality when on calls
• Automatically adjusting EQ settings when listening to music or media
• Premium PC wideband audio with noise-canceling microphone
• Digital Signal Processing (DSP) for a more natural voice sound
• SoundGuard DIGITAL technology provides advanced audio protection for sound levels above 118dBA with Anti-startle that detects which eliminates large sudden increase levels
• Poly Lens can add lower level hearing protection against acoustic startle, limiting peak levels to 102 dBA. Time-Weighted Average prevents average daily noise exposure from exceeding 85 dBA
• 2 year manufacture warranty

Blackwire 5200 Training Adapter X 1

• Allows two people to hear both sides of the conversation (both users must be wearing a Poly Blackwire 5200 headset)
• The Y tail plugs into trainers Blackwire inline control unit, headset must be unplugged first
• Both users can always listen – but only Agent (red end) can be heard
• Supervisor or Trainer (black end) is always muted
• Genuine Poly accessory