CH 20 MB USB headset charger (without stand) for Mobile Business Pro Series and PRESENCE™ Mobile Series.
Article No. 506040


CH 20 MB USB headset charger (without stand) is designed as alternative to base station charging for both the Mobile Business Pro Series (MB Pro 1 and MB Pro 2) and the PRESENCE™ Mobile Series (the PRESENCE™ headset is mounted on the PRESENCE™ headband). The charging cable for Bluetooth® headsets is suitable for desk sharing or in shift work environments such as emergency centers or call centers.


  • The Mobile Business Pro Series headsets and the PRESENCE™ headset can be charged directly with the Sennheiser CH 20 MB USB headset charger (without stand) to save additional space.

Technical Data

  • Connector
  • Cable length
    185 cm / 6.07 ft
  • Weight
    33 g / 1.16 oz
  • Charging time
    100 m a: 3 h
  • Current consumption
    100 mA when powered from standard USB power supplies
  • Input voltage range
    4.75 - 5.25 V
  • Output voltage
    3.6 - 5.25 V


  • EU Declaration of Conformity
    • EC Declaration of Conformity (520 KB) Download

  • Safety Guides
WARNING (for California residents only): This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects and other reproductive harm. For more information go to: