An earphone with control device of timing call setting, mainly comprises a earphone device with a plug body end and speaker end, a control circuit device that is disposed between the plug body end and speaker end of the earphone phone, as well as an external setting device. Cavities are formed in opposite sides of the rotor and are each divided into chambers by partitions fixed in the cavities. The beam assemblies are set apart sufficient for the skid steer to drive between the assemblies to engage the mounting structure. If the first query is unsuccessful at locating the value, then the value is determined by formulating and submitting a second query against the properties data store based upon a combination of the object identifier and the attribute identifier. The loudness adjustment values may be communicated to the audio playback devices through metadata in associated pieces of sound program content or as separate communications from the content delivery system.