Q : Is this small speaker ?
A : Size is around 2 ft. However, sound is loud and powerfull. Great for a parties and day to day use.
Q : Can I connect Mic ?
A : Yes. There is a port for mic as well. Speaker comes with a Mic and remote. You can connect it.
Q : Is it bluetooth ?
A : Yes. Otherthan Bluetooth, you can use it as wired speaker, play songs through SD card, USB Pen drives etc.