Problem with switching deufalt device

Hi, i have a problem i can´t uncheck my Speakers as deaufalt device so when im calling on skype other sound goes trought speakers, i looked on some topics but there was only soloutions with switching headphones to deufalt but i have have switched them already but speakers are still deaufalt device.Here´s a image https://scontent-a-fra.xx.fbcdn.net/hphotos-xpf1/v/t1.0-9/10552468_828846983815127_6855575411228199763_n.jpg?oh=5e1e4766f44432c1c5fdb6cd77a77a22&oe=54C12640