Clicking Noise?

Everytime I am slowing down once i get to around 10-15mph i can hear a clicking sound coming from what i think is the brakes... I just replaced the pads too and it has drilled/slotted rotors as well

 

[NickDromez]

sounds like there might be a piece of metal or brake lining that is hitting the rotors. check the rotors to makes sure theres no scratches on them and there are no uneven spots