Two Nights at Jumpscare

Locked in an abandoned house, you have one truly unique mission! Others would be scared to death, but you? Oh, boy... You fear no monsters around! Thing is that you have recently bought 29 new smartphones. Don't ask us, why you did that. You might be crazy, but seriously, who isn't? Anyway, you lost all your smartphones somewhere in that abandoned house. Find their locations and collect them to your pockets. Then find the exit from the house and celebrate the victory. Don't forget that there is a time limit of ten minutes! Have fun.