Sennheiser HD1 Free Specs

Tech Specs


  • Brand:


  • Model Name:

Sennheiser HD1 Free


In Ear Bluetooth Neckband

  • Driver Unit:

Dynamic Driver

Colors Options Available:

  • Sennheiser HD1 Free Black



No links available to buy it online
Review Availability

At the moment we have no reviews available for this product but we will try to review it in the future.

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Full Technical Specifications
  • Wearing style
  • Bluetooth Version
  • Supported Profiles
    A2DP 1.2
    AVRCP 1.4
    HSP 1.2
    HFP 1.6 – HD Voice
    (Or higher)
      • Frequency response15Hz – 22000Hz
    • Max. sound pressure level
      118dB (Passive: 1kHz/ 1Vrms) > Active
    • THD, total harmonic distortion
    • Ear coupling
      In Ear
    • Transducer principle
      Dynamic (SYS10)
    • Weight
      < 40g
    • Audio input
    • Range
      up to 10 meters
    • Min. terminating impedance
      28 Ohm (Passive)
      480 Ohm (Active)
    • Operating voltage (mains)
    • Sensitivity as per 121 TR 9-5
      – 44 dB V/Pa
      Sending Loudness Rating (SLR)
      Wideband: 10dB +/- 5dB
      Narrowband: 8dB +/- 5dB
    • Battery Specification
      Built-in Rechargeable Lithium-ion Polymer (~85mAh) with more than 500 charges
    • Codecs
      apt-X ® / apt-X ® LL /AAC/SBC
    • Personal fit
      XS, S, M, L (4 sets)
    • Speaker type
    • Voltage
      3.7V Nominal
    • Connection
      2 device simultaneously (HFP/A2DP)
      8 device in pairing list
    • Charging Current


Colors Options Available:

  • Sennheiser HD1 Free Black



No links available to buy it online

MORE: Headphones Scores Compared

FIND ALL OUR: Earphones Reviews / In-Ear Headphones Reviews


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