HyunA and Dawn are only days away from their duet release!

On September 5 KST, P NATION unveiled an 'object teaser' promoting the couple's upcoming mini album '1+1=1,' featuring title track "Ping Pong." A bright 'Guess What?' is written on top of the image, while six photos tease various elements of the two idols' concept aesthetics, including close-ups of various parts of their faces and bodies.

Meanwhile, '1+1=1' is set for release on September 9.

Check out the full teaser below!