One Training set: Nucleon U2521 Agent Stereo USB Headsets and S2521 Supervisor Headset.  All in one bundle to make it easier and more cost effective for you!

Nucleon U2521 Agent Stereo USB Headset w/Inline Controls & Built-in Training Adapter X 1

• Built for UC applications and softphones from Avaya, Cisco, Microsoft and more
• 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
• Cable length from headset to USB Connector 86 inches/7.16 feet
• 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

Nucleon S2521 Supervisor Stereo 3.5mm Headset X 1

• Side-By-Side training is complex and costly with existing headsets; that’s exactly why the Nucleon Agent Headsets have a built-in training adapter. Just plug in this Supervisor Headset!
• Use with Nucleon U2521 Agent in the Built-in Supervisor Port
• The Nucleon S2521 Supervisor Headset is designed for listening only. It does NOT transmit audio when used in the Supervisor port of the U2521
• The microphone and busy light on the S2521 headset are disabled by design. These features are not active during use with the U2521
• When the S2521 headset is connected to the 3.5mm jack on the Agent U2521 headset, the supervisor can listen to the call in real-time
• Memory foam cushions wrapped in skin-friendly protein premium leatherette, providing a luxurious experience for extended wear
• Fantastic passive noise cancelling for the user with excellent sealing with the ear cushions, effectively reducing external noise for the user
• 27mm powerful speaker is leak-tolerant, delivering rich, high-definition audio for calls & music
• Adjustable headband & foldable lightweight design
• Weighs under 33 grams!
• Lightweight body comes with 90° pivoting speakers and adjustable headband, ensures a great fit
• In the Box: S2521 3.5mm Headset, carrying case, quick start guide
• 2 year manufacture warranty