Modular Speaker is a multi-mode household speaker, putting down the headphone to the speaker, users can immediately switch the mode of enjoying music alone to sharing with others. At the same time, the speaker could charge for the headphone. By attaching the headphone the spherical shape of the object is complemented. The speaker has a very simple iconic form relying on high quality materials and sophisticated execution to deliver a premium feeling. A display behind the speaker mesh indicates the actual mode like play / pause by the use of simple icons or the actual volume setting.