A Bluetooth Speaker with an Auxiliary Output Jack (Aux Out) is great for any DJ or home audio setup. The auxiliary output allows you to connect any other speaker and have it play the same music. You can read more here.
ELITE Series Professional Dual 15" Party Speaker with RAVE™ Light - 6500W | SPX-280BT $ 289.00 + Free Shipping
Professional Party Speaker with 7-Color Lights and Triple 10" Woofers - 3100W | SP-154BT $ 309.00 + Free Shipping