The present invention relates to a Bluetooth speaker which is connected to another device to reproduce a sound by using Bluetooth. The present invention provides the Bluetooth speaker which comprises: a case formed with a connection ring for connecting a soundproof hole and a neck string; an enclosure type micro-speaker which is installed in the case and generates and emits a sound to the soundproof hole of the case; a main PCB in which a Bluetooth module is installed; an FPCB which connects the main PCB to the micro-speaker; and a battery.
