Boy group A.C.E is having a comeback in just a few more days!

The group has released several batches of teasers for their upcoming 2nd mini album, “Callin’.”

Teasers compose of concept photos for each of the members (Jun, Donghun, Wow, Jason, and Chan), along with a MV teaser featuring each one. So far, only the teasers for Jun, Donghun, and Wow have been revealed, which just leaves Jason and Chan left.

“Callin’” will be released on October 18 at 6PM KST.