Bluetooth multifunction microphone with speaker in various colors Multifunction wireless microphone with bluetooth, integrated speaker, music player ideal for listening to music and having fun with karaoke in the company of friends. Music can be played via micro SD memory cards, USB flash drives, PCs and devices that use the bluetooth technology or via 3.5mm jack audio cable.   Technical characteristics Ports: Micro SD, USB, Micro USB ( For charging), Jack aux 3.5mm Music playback via bluetooth, 3.5mm jack, usb or tf card Keys: On / Off, Next, Previous, Volume +, Volume -, Scan / Play / Pause, Volume Microphone Battery: Built-in Li-18650 Battery capacity: 1800 mAh Available in various colors