D 10 Phone

Sennheiser D 10 Phone is a streamlined single-sided wireless DECT headset connecting directly to the desk phone to provide uncompromising sound for office professionals.
Article No. 506408

Wearing variations


The D 10 Series offers the choice of 3 wearing styles. Choose between single-sided headband, ear hook or neckband. All headsets are for both left or right ear wearing and they all fit in to – and can be paired with the same base station.

The neckband is available as an optional accessory. Click-on adapter from HSA 20 accessory needed for mounting.


The sound of quality

Sennheiser Voice Clarity

For the best possible communication between caller and listener, Sennheiser Voice Clarity uniquely enhances the most important frequencies and details of the human voice. For the caller, sound is crisper and clearer, allowing them to hear the nuances contained in spoken conversation – and for the listener, a noise-cancelling microphone sends the clearest signal to improve intelligibility. In combination this results in better, more natural sounding conversations where no important details are lost.

Sennheiser Voice Clarity

Forget about battery-time

Full workday talk time

Thanks to intelligent fast charging, the D 10 Series headsets deliver a full day of talk time for a comfortable, worry-free connection in the office.

Full workday talk time

Additional Features

  • Dialogue in motion

    • Experience quality sound on the move as you roam around the office. Wireless freedom extends your working range so you’re always within reach. Typical office building: up to 55 m. Line of sight: up to 180 m.

  • Single Connectivity

    • Connect directly to your desk phone/PC

  • ActiveGard®

    • Sennheiser ActiveGard® technology protects users against acoustic injury caused by sudden sound burst on the line.

  • Phone conferencing

    • Fast and convenient.
      Up to three additional guests can join the same conference call by simply docking the headset to the same base station. There is no interruption and it is very fast and convenient for guests to join the same conversation.

  • Full work day talk time

    • 8 hours in wideband and 12 hours in narrowband sound mode.

  • 2-in-1 wearing style

    • Choose between ear hook and headband

  • Fast charging

    • Re-charge 50% of the battery in 20 minutes.

  • Noise-cancelling microphone

    • Filters out unwanted background noise for crystal-clear conversations.

  • A ring of confidence

    • Set up your own built-in ringtone and be sure never to miss a call.
      D 10 USB and D 10 USB ML feature a built-in ringer with a choice of three ringtones and adjustable ring volume.

D 10 Headset Trial Request

Please note that Sennheiser reserves the right to qualify the incoming requests

Technical Data

  • Frequency response (Microphone)
    Wideband: 150 Hz – 6.8 KHz
  • Frequency response (Microphone)
    Narrowband: 300 Hz – 3.5 KHz
  • Frequency response (Headphones)
    Wideband: 150 Hz – 6.8 KHz
  • Frequency response (Headphones)
    Narrowband: 300 Hz – 3.5 KHz
  • Weight
    ear hook version: 22 g / 0.78 oz
  • Weight
    headband version: 50 g /1.76 oz
  • Earpad size
    ø 50 mm / 1.96 in
  • Charging time
    0 - 50: 20 minutes
  • Charging time
    0 - 100: 1 hour
  • Standby time
    Up to 100 Hours
  • Range
    line of sight: 180 m / 590 ft
  • Range
    in typical office building: 55 m / 180 ft
  • Talk time
    Wideband: Up to 8 hours
  • Talk time
    Narrowband: Up to 12 hours
  • Storage temperature
    -20 °C to + 70 °C (-4 °F to +158 °F)
  • Operating temperature
    +5 °C to + 45 °C (+41 °F to +113 °F)


  • Transport information for Lithium-Ion batteries
    • Transport information for Lithium-Ion batteries (470 KB) Download

      Revision Date: 2020-02-09 Revision Number: 1.0

    • UN 38.3 - Test Report Summary (75 KB) Download

  • Fact Sheets
  • FAQ-PDFs
  • Safety Guides
    • Safety Guide - D 10 Series (580 KB) Download

  • Quick Guides
  • Instruction Manual
    • User Manual - D 10 Series (2.3 MB) Download

  • EU Declaration of Conformity
    • EC Declaration of Conformity (240 KB) Download

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