The Shure SBC220 networked docking charger provides a compact charging and storage solution for any combination of 2 SB900 or SB900A batteries or the following wireless transmitters using Shure rechargeable batteries. The charger is network-enabled to allow for remote monitoring of charger and battery parameters using Shure Wireless Workbench software. Connect up to four SBC220 or SBC240 chargers together to share power and network connectivity.