JB.lab Stage LED Light Portable Mini Bluetooth Speaker (Black). Gorgeous 4-color LED lighting Rendering natural spectrum according to EQ of music. Micro 5-pin charging. Supporting voice guide of SNS application Reading messages in voice by making use of application developed by JB Lab. AUX Playing role of external speaker of PC,smart phone and tablet PC by connecting on 3.5 AUX terminal. Micro SD, USB Using as an MP3 player (recognizing up to 32 GB).