Kitkat 4.4.2 - Wifi detection sound can´t be canceled

I like to walk & hear music , so every time I go out of home - in order to avoid the annoying wifi detection sound that stops the music and plays a silly tone - I have to turn off the Wifi.
Alcatel support suggested me to go to Settings > WIFI > Wifi settings > advanced > uncheck the Wifi notification option.
I think that they don´t know very well the product the company sells , as there is not the "advanced" option on this poor version of Android installed on my device.
The question is : has the manufacturer removed resources (I suspect that´s the case) from kitkat or simply it does not have the mentioned menu to cancel the useless wifi notification ?

— modified on Apr 24, 2017, 9:23:06 PM