Nokia Purity Pro BH-940 headphones

[original.woodster]

Just received my new yellow headphones today and trying them out using Nokia Music, and im noticing a slight hiss during music in the right ear more, could this be down to them being new and need to get broken in to which i have read they need a few hours play back in order to sound their best?

 

[WP8Expert]

Are you running WhatsApp with its background agent running? As it is said to have a slight sound

 

[original.woodster]

Don't have whatsapp installed, the hiss seems to of gone now i think after some use

EDIT: naa, the hiss is still there slightly.