Abstract: The present invention relates to a portable speaker device usable with a container and a method for using the same. The portable speaker device has a structure to be mounted on containers of various kinds, materials, shapes and sizes to be discarded. That is, the portable speaker device includes a first mounting member mounted in an opening of a container. The portable speaker device further includes a second mounting member coupled to the first mounting member and provided to be mountable on containers of various sizes. The portable speaker device receives sound source data reproduced from a mobile device through wireless communication, and outputs the reproduced sound of a speaker through the container.