SummitLink Logitech Z-5500 Computer Speakers Control Pod V2 Post636 Subwoofer Wired Remote This is the Version V2 replacement control pod (black edition) for Logitech z-5500 speakers he V2 version has built-in power switch so now you can turn on/off your speaker system from the control pod! This unit is compatible with z-5500 systems with ONLY post636 PIDs!!! (PID between R001-R200 and R636-R999) You can simply connect this control pod to your subwoofer/speakers