Audio-Technica ESW-CHG5AD ESW 4-Bay Charging Station BundleMake sure your ESW boundary mics and desk stands (sold separately) are ready when you are with the ESW CHG5 four bay charging station. A rapid recharge feature supplies a full charge to four transmitters in approximately two hours. Two charging stations (sold separately) can be linked with the included AC adapter and a Cat5 cable (sold separately). Conveniently update firmware on all docked transmitters remotely and monitor charging status and battery