The Nx55 12 inch powered speaker is good for pa, public speaking, corporate meetings, dance party's, bands, weddings, in door and out door, they are waterproof, 

Comes with built in amp and eq. Has mic inputs and line inputs for lap top or external devices. 

These speakers are good for monitors and also speakers for up to 250 to 300 people events. 

Has volume control on back of speaker. Has xlr and 1/4 " inputs to plug into a sound board. 

One xlr 25 foot mic cable included if needed. Please let us know if u need one