XDJ 700 and traktor pro

Yes, but only in MIDI mode - you must configure the mapping yourself or find a 3rd-party map to control Traktor.

cdj 2000 nexus but very easy.. but XDJ 700 Is it difficult ?

That's because NI has officially integrated the CDJ-2000NXS, but there is not yet support for the XDJ-700, so you need to do it yourself.

I have to use with rekordbox ??

Or any other MIDI-compatible application, or as a stand-alone player... it's up to you.

Well...

Pioneer which  controls device compatible ?

ddj sz? ddj rz ?

Thank you very much for your interest..

Good luck with..

There are several units which are HID compatible, and others which use MIDI and an official TSI file is available from Pioneer to map the controls to the software. For those products without official TSI files, you have to make your own or find a 3rd party who has made one.