Yealink EHS40 Electronic Hook Swicth

Interface for Yealink phones and wireless HeadsetEHS40 adapter compatible with Yealink T58A/T57W/T54W/T53W/T53/T48S/T46S/T46U/T42S/T41SKey featuresEHS adapterCompatible with Yealink T58A/T57W/T54W/T53W/T53/T48S/T46S/T46U/T42S/T41SCompatible with Jab