Sound outputting device, has enclosure module electrically connected to interface of another module, where resistance values of modules decrease, and modules deliver volume value when connection points are electrically connected

摘要

The device has a connection point (12) not electrically connected to another connection point (21). An acoustic enclosure module (20) is electrically connected to an input interface (11) e.g. earphone plug, of another acoustic enclosure module (10), where circuit resistance values of the modules are invariable. The modules deliver a volume value. The resistance values decrease, and the modules deliver another volume value lower than former value when the points are electrically connected. A universal serial bus coder/decoder selectively controls the modules.