Cisco Wireless IP Phone CP-7921G Multi-Charger is ideal for customers who have multiple shifts and need to keep their Cisco Unified Wireless IP Phone 7921 charged, multi-charger can charge up to 6 phones and 6 batteries simultaneously, unit to be placed on a desk or mounted on the wall, part number CP-MCHGR-7921G-BUN (includes power supply; AC power cord).