The Panasonic WX-Z3040A Attune Battery Charger is a four-port charging station designed for Panasonic Attune I and II drive-thru headsets, including models WX-CH455 and WX-CH457. It can charge up to four WX-B3030 or WX-SB100  batteries simultaneously. Charging is possible with batteries either in or out of their cases, and the unit includes LED indicators to display charging status. A quick 5-minute charge provides up to 4 hours of headset use. The charger is wall-mountable and includes a power supply.