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.