T-Ara together with Si Yoon are on it again to promote KT Tech's new phone model, "Mongle Mongle". But this time there's an additional cast its not a person but a dog,  It is Sanggeun the mascot of KBS' variety show 1 Night 2 Days.

Everyone's charm and charisma were all combined to produce this set of CF's, so there's nothing to worry if you find yourself smiling while watching these CFs.


Credits:
TheBeemanu88 for the videos
T-araWorld.blogspot.com