Question [Q] Flashing Stock Android

Hi guys ,
I have some questions.
1. Is there any rom available with stock android 4.4 or 4.3, which I can flash in my HOX+ ?
2. What are the features which will not work if I use 4.4 ?
3. I have flashed cyanogenmod 10.2.1 , and now my headset is not recognized by the phone. I can hear music in the headset and in the loudspeaker. How can I fix it ?

Thanks in advance