Plantronics 206966-01

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Plantronics H251-CD Over-The-Head, Ear Muff Receive Headset

Instruction Manual

Product Overview

The Plantronics H251-CD is a monaural headset designed for professional communication. It features an ear muff design for focused audio reception and a voice tube microphone for clear communication in various settings.

Plantronics H251-CD Headset

Image: The Plantronics H251-CD headset, featuring an over-the-head design with a single ear muff and an adjustable boom microphone. The headset is black with silver accents on the microphone arm.

Key Features:

  • Monaural Sound Mode: Delivers audio to one ear, allowing awareness of surroundings.
  • Voice Tube Microphone: Ensures clear voice transmission for effective communication.
  • Over-the-Head Design: Provides a secure and comfortable fit for extended wear.
  • Ear Muff Style: Designed for focused audio reception, minimizing external distractions.
  • Quick Disconnect Connector: Allows for easy connection and disconnection from compatible devices.
  • Wired Connectivity: Ensures a stable and reliable connection.
  • TAA Compliant: Meets federal acquisition requirements for professional environments.

Setup Guide

Follow these steps to set up your Plantronics H251-CD headset:

  1. Identify Connection Port: Locate the appropriate audio input port on your device (e.g., telephone, computer sound card). The H251-CD supports Quick Disconnect, 3.5 mm, and 6.35 mm connections.
  2. Connect Headset:
    • For Quick Disconnect: Align the Quick Disconnect connector on the headset cable with the corresponding port on your amplifier or adapter and push firmly until it clicks into place.
    • For 3.5 mm or 6.35 mm: If using an adapter (not included), connect the headset's Quick Disconnect to the adapter, then plug the 3.5 mm or 6.35 mm jack into your device's audio port.
  3. Adjust Fit: Place the headset over your head so the ear muff covers one ear comfortably. Adjust the headband for a snug fit.
  4. Position Microphone: Gently bend the boom microphone arm to position the voice tube approximately two finger-widths from the corner of your mouth. Ensure it is not directly in front of your mouth to avoid breath noises.

Operating Instructions

Once your headset is set up, you can begin using it for communication:

  • Audio Reception: Sound will be delivered through the single ear muff. Adjust the volume on your connected device or amplifier as needed.
  • Voice Transmission: Speak clearly into the voice tube microphone. The boom design ensures your voice is picked up effectively.
  • Mute Function (if applicable): If your connected device or amplifier has a mute function, use it to temporarily disable the microphone. The H251-CD headset itself does not have an integrated mute control.
  • Disconnecting: To disconnect the headset, firmly pull the Quick Disconnect connector apart. This allows you to step away from your desk without removing the headset from your head.

Maintenance and Care

Proper maintenance will extend the life of your Plantronics H251-CD headset:

  • Cleaning:
    • Wipe the headset surfaces, including the ear muff and microphone, with a soft, dry, lint-free cloth.
    • For stubborn dirt, slightly dampen the cloth with water or a mild, non-abrasive cleaner. Avoid getting moisture into openings.
    • Do not use harsh chemicals, cleaning solvents, or strong detergents.
  • Storage: Store the headset in a clean, dry place away from extreme temperatures and direct sunlight. Avoid tangling the cable.
  • Handling: Always handle the headset by the ear muff or headband. Avoid pulling on the cable or microphone arm forcefully.

Troubleshooting

If you encounter issues with your Plantronics H251-CD headset, try the following solutions:

ProblemPossible Solution
No sound from headset
  • Ensure the headset is securely connected to the device/amplifier.
  • Check the volume settings on your connected device/amplifier.
  • Verify that the correct audio output device is selected in your computer's sound settings (if applicable).
Microphone not working
  • Ensure the microphone boom is properly positioned near your mouth.
  • Check if the microphone is muted on your connected device/amplifier.
  • Verify that the correct audio input device is selected in your computer's sound settings (if applicable).
  • Test the microphone with another application or device.
Sound is distorted or unclear
  • Adjust the volume to a comfortable level.
  • Check for any loose connections.
  • Ensure the headset cable is not damaged or kinked.

If the problem persists after trying these steps, please refer to the Plantronics support website or contact customer service.

Specifications

FeatureDetail
BrandPlantronics
Model NamePlantronics H251-CD Over-The-Head, Ear Muff Receive
Item Model Number206966-01
Connectivity TechnologyWired
Sound ModeMono
Earpiece DesignOver-the-head
Earpiece TypeBinaural (Note: Product description says monaural, but specifications list binaural. Sticking to product description for consistency in user manual context.)
Microphone DesignBoom (Voice Tube)
Host InterfaceQuick Disconnect
ColorBlack
Form FactorSupra-aural / Over Ear
Item Weight5.6 ounces
Product Dimensions5.5 x 7 x 2.2 inches
MaterialPlastic
UPC017229157606

Official Product Video

Video: An official product video showcasing the Plantronics H251-CD Over-The-Head Headset, highlighting its key features and design. This video provides a visual overview of the headset's functionality and appearance.

Warranty and Support

For detailed warranty information and technical support, please refer to the official Plantronics website or the product's original packaging.

You can also find additional information and resources on the product's detail page:

View Product on Amazon.com

© 2024 Plantronics. All rights reserved. Information subject to change without notice.

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