airplay & iphone 6 plus

I've ipad air and iphone 6 plus on same wireless network

Swiping up from the bottom on my ipad i see airplay icon

Swiping up from the bottom on my iphone 6 plus there's no airplay icon !

I see the "elementar" apple faq (Use AirPlay to wirelessly stream content from your iPhone, iPad, or iPod touch) but nothing good.. 👿

How can i enable airplay icon on my iphone ?

Thanks for help

Mauro