Pioneer Dj DDJ-FLX4 Portable 2-Channel rekordbox DJ and Serato Controller (Graphite) - Manual (Page 11)

Part names and functions
11
En
Top panel
1 Browse section
Selects tracks and loads them to the decks.
2 Deck sections
Control each deck. There are knobs and buttons on the left side to control deck
1, and on the right side to control deck 2.
3 Mixer section
Controls the level adjustment for each channel, track mixing, etc.
4 Effects section
Controls the effect units.
4 3
2 2 1 3