DJM - 250 - Anyway to hook up external effect?

Hello. 

Got DJM 250 and two turntables (that's it). 

Is there a way to hook up anything from as simple as a guitar or even really any effects unit? 

Want to add some simple delay, echo & other sound manipulation to the output (even if it hits both decks, that's fine). 

Saving up for an 450 or 750 if I'm lucky but just wondering if there's some options now with the 250. 

If not cool too. 

Eric S