Experience the joy of movement with the Sennheiser CX SPORT In-Ear Wireless headset. With a lightweight, sweat and splash resistant design that can be worn around the neck or in front, and advanced Bluetooth technology, it sets you free to experience high quality sound as you move.
Article No. 508256
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Made to move.

Sennheiser’s new CX SPORT In-Ear Wireless headset elegantly balances finely-honed performance and cool, purposeful design to find pleasure in sport. The CX SPORT brings joy to any activity with brilliant, high quality sound in motion. Equipped with a proprietary speaker system, it delivers a clear, detailed sound with a satisfying bass response. Its multi-connection capability lets you pair the CX SPORT with up to two devices simultaneously, while Bluetooth 4.2, Qualcomm® apt-X™ and apt-X™ Low Latency compatibility ensure that you can experience the freedom of cable-free listening with uncompromised true Hi-Fi sound. It also has a slick three-button remote that lets you effortlessly manage music and calls, as well as convenient voice prompts to further enhance ease of use.

Made to move.

The new CX SPORT has been created to move as you move, with ergonomic fins that keep the earbuds comfortably secure. The CX SPORT can either be worn around the neck or in front, with a cable organizer that lets you tailor the length to suit, and an integrated clip that can be used to fix it to your collar for extra peace of mind. With a choice of three fin sizes (S/M/L) and a choice of four sizes of ear adapter (XS, S, M, L) it’s easy to find a perfect fit to help block outside noise while you stay focused.
Thanks to our exacting quality standards, the CX SPORT is tough enough to take on any challenge with extra assurance provided by splash and sweat resistance.

The CX SPORT offers a six-hour battery life, which can be quick-charged via USB in just ten minutes to offer a further hour of playback, and fully charged in 1.5hrs.

What's in the box?

  • CX SPORT In-Ear Wireless Headphones
  • USB Charging Cable
  • Ear adapter Set (XS / S / M / L)
  • Ear Fin Adapter Set (S / M / L )
  • Cable Clip
  • Neoprene Storage Pouch
  • Quick guide + User manual

Technical Data

  • Wearing style
  • Impedance
    28 Ohm (Passive), 480 Ohm (Active)
  • Bluetooth Version
  • Supported Profiles
    A2DP 1.2
    AVRCP 1.4
    HSP 1.2
    HFP 1.6 - HD Voice (Or higher)
  • Frequency response
    17 – 21,000 Hz
  • Max. sound pressure level
    112 dB (1 kHz/0 dBFS)
  • THD, total harmonic distortion
  • Ear coupling
  • Transducer principle
  • Weight
    15.07 g
  • Audio input
  • Range
    Up to 10m
  • Pick-up pattern
  • Operating voltage (mains)
  • Battery Specification
    Built-in rechargeable Lithium-ion Polymer
  • Personal fit
    Ear sleeves: XS, S, M, L (4 sets), Ear fins: S, M, L (3 sets)
  • Connection
    2 devices simultaneously (HFP/A2DP), 8 devices in pairing list
  • Audio codec
    apt-X ® / apt-X ® LL / AAC / SBC


  • Instruction Manual
    • Instruction manual CX SPORT (4.6 MB) Download

  • Quick Guides
    • Quick Guide CX SPORT (600 KB) Download

      Version 03/2018

  • Safety Guides
    • Safety Guide CX SPORT (7.3 MB) Download

      Version 04/2018

  • EU Declaration of Conformity
    • EU Declaration of Conformity CX SPORT (640 KB) Download

  • Transport information for Lithium-Ion batteries
    • Transport information for Lithium-Ion batteries (570 KB) Download

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