Pioneer Dj DDJ-FLX4 Portable 2-Channel rekordbox DJ and Serato Controller (Graphite) - Manual (Page 110)

rekordbox for iOS/Android
110
En
 Connecting via Bluetooth
1 Connect your USB power adapter or mobile battery to the unit's
USB port (for power supply) using a USB cable to turn the unit on.
2 Start rekordbox for iOS/Android and turn your mobile device screen
horizontal to close the browse screen.
The screen in step 3 is displayed.
3 Tap at the top-center of the screen.
4 Tap .