Pdf? Really? In 2019? Don't they know we all use smart phones? Make your info screen adaptive.
Speaker Setup.....
Very interesting..........
https://www.google.com/url?sa=t&source=web&rct=j&url=http://www.hifi.ir/wp-content/uploa...
https://www.google.com/url?sa=t&source=web&rct=j&url=http://www.hifi.ir/wp-content/uploa...