All stock codes associated to this product
CH 20 MB, 1000674, SPSCH20MB, SPS-CH20MB, 4044155090321, 5714708004752
Sennheiser CH 20 MB USB Charger and 
Stand
 
Features
  - Multiple mounting options: Wall mounted, where space is limited 
  
- Multiple mounting options: Cascaded, side by side 
  
- Multiple mounting options: Single, stand-alone charger on a desk 
  
- Charging time: 3 hours when connected to Sennheiser MCH 7 multi-USB power 
  source 
  
- Charging time: Only 1 &1/2 hour with dedicated external power supply 
  (400 mA)
Overview
CH 20 MB headset charger (with stand) for Mobile Business Pro Series and 
PRESENCE™ Mobile Series.
The CH 20 MB headset charger (with stand) is designed for use as an 
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). Simply place the Bluetooth® headset in the 
charger stand when not talking and the headset will automatically charge. This 
charger is suitable for desk sharing or in shift work environments such as 
emergency centers or call centers.
Specifications
  
  
    | Connector | USB 
       | 
  
    | Cable 
      length | 170 
      cm / 5.58 ft when mounted in charger stand  | 
  
    | Weight | 220 
      g / 7.76 oz  | 
  
    | Charging 
      time | 100 
      m a: 3 h  | 
  
    | Charging 
      time | 400 
      m a: 1½ h  | 
  
    | Current 
      consumption | 100 
      mA when powered from standard USB power supplies  | 
  
    | 
 | 400 
      mA when powered from supplies which follow “USB Battery Charging standard 
      V1.2”  | 
  
    | Input 
      voltage range | 4.75 
      - 5.25 V  | 
  
    | Output 
      voltage | 3.6 
      - 5.25 V  |