Audio-Technica ESW-CHG5 ESW 4-Bay Charging StationMake 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 can be linked with an AC adapter and a Cat5 cable (all sold separately). Conveniently update firmware on all docked transmitters remotely and monitor charging status and battery level with A T's