Stereo microphones are not supported. Use a monaural microphone.

Music files purchased since the iTunes Plus service started can be played on this unit (XDJ-AERO).
Music files purchased before the iTunes Plus service started cannot be played for copyright protection reasons.

No.
rekordbox can only connect to one XDJ-AERO.

There is also the Vinyl mode (when Jog Drum is off).
The Vinyl mode has the same specifications as the function provided on previous CDJs.

The limit is 2 seconds per sample.
The function for loading from USB devices is availabled from the version 2.00.
Please update to the latest firmware from the support page

No.
The Sample Launch Bank function is availabled from the version 2.00.
Please update to the latest firmware from the support page

Yes.
The USB device can be browsed by pressing the "USB" medium select buttons on the respective decks. Use the rotary selector to select the track then press the rotary selector.

The XDJ-AERO cannot call a loop memory and a hot loops which are set with rekordbox.

Before the version 2.00:
Loads the XDJ-AERO's internal sampled sound sources onto decks.
When Sample Launch is turned off, restores to the track status directly before Sample Launch was turned on. A different sample can be switched to by long-pressing the SAMPLE LAUNCH button.

After updating to the version 2.00 (New sample launch function):
Used as the Play button for the four types of sampled sound sources set at the four BEAT FX buttons. By long-pressing the SAMPLE LAUNCH button, the sampled sound sources can be replaced with the desired sound sources on the USB device.
Please update to the latest firmware from the support page for using new sample launch function.

Settings are in English only.
Warnings are in English and simplified Chinese.
The following 18 languages are supported for track names:
English, American, French, German, Italy, Spanish, Portuguese, Dutch, Swedish, Finnish, Danish, Norwegian, Czech, Hungarian, Croatian, Slovak, Polish, Russian, Ukrainian, Greek, Turkish, Japanese, Chinese (traditional, simplified), Korean

No, it can't.

The Pro DJ Link function is not supported.
LINK EXPORT:
When a mobile device or computer is connected by wireless LAN, rekordbox music files and management data can be exchanged directly.

Yes. It is possibile.

The sync function cannot be used with sampled sounds.

1 Press the [INFO (UTILITY)] button for at least 1 second.
=> The [UTILITY] screen appears.
2 Use the rotary selector to select "AUTO STANDBY", then press the rotary selector.
=> The auto standby screen appears.
3 Use the rotary selector to select "OFF", then press the rotary selector.
=> The auto standby function is canceled.

TRIM
This adjusts the audio level input from external devices to the respective decks.

These adjust the audio level output from the respective decks for mixing.

MAIN VOL
This adjusts the audio level output from this unit to external devices.

Headroom is the maximum level at which input signals can be handled without distortion, indicating the amount of leeway. Generally it is expressed in decibels (dB). The higher this value, the greater the capacity to handle excessive inputs and the lower the tendency for distortion.

The IP address is set automatically by the AutoIP or DHCP function, so there is no particular need to set it on this unit. Also, it is not possible to check the currently assigned IP address on this unit.

Cursor operations and loading in rekordbox are possible using the XDJ-AERO's rotary selector and BACK button. For details, refer to the operating instructions.

Samples are not supported by the beat sync function.

No.

HID (Hardware Interface Device) mode allows the player to communicate bi-directionally with the computer in order to send control signals (eg. play, fast-forward, scratch, loop), and receive information (track and time data for the display, loop status for the LEDs).

Yes.
Select [UTILITY] -> [WLAN SETTING] -> [NETWORK SETTING].
At the STEP 1 screen, press the rotary selector.
At the STEP 2 screen, select the type of security. (There are three types: WPA, WPA2 and OPEN.)

Library browsing
Number of displayed characters: 127

Folder browsing
Folder and file names: 127 characters

ID3 tags
Titles: 127 characters

SSID
32 characters

When switched to the wide mode, the tempo can be changed by -100% to +16%.

This unit operates with a BPM of 120 when the sample's tempo is 0.0%.

The sync function is not supported with samples.

The quantize function does not operate with auto beat looping of samples.

The beat FX function operates with the BPM of the other deck when the beat FX function is turned on while a sample is loaded.

44.1 kHz and 48kHz are supported. (Sample rates of 88.2 kHz and 96 kHz are not supported.)
48kHz is availabled from the version 2.00.
Please update to the latest firmware of XDJ-AERO from the support page.

The loading time differs according to the USB memory device's performance.
Also, some time may be required for loading during USB recording.

Wi-Fi related settings can be reset. (UTILITY -> WLAN SETTING -> RESET TO DEFAULT)

When playing an analyzed track on the other deck, the quantize function operates with respect to the beat position of the analyzed track.

First, as a condition to become the sync master, the loaded track must fulfill all of the requirements below.
-It must have been analyzed with rekordbox.
(A deck cannot be set as the master for tracks that have not been analyzed or for samples.)
-The track must have been loaded in the library browsing mode.
(A deck cannot be set as the master if tracks have been loaded in the folder browse mode.)
-The track must have a BPM of 70 or greater for a tempo of 0.0%.

Next, concerning the conditions in which the master switches automatically, when tracks fulfilling the conditions for the deck to become a master are loaded in both decks, the operation is as described below.
-The deck on which playback was started first is set as the master.
-When the pause operation is performed on the master deck (by pressing the PLAY button during playback, pressing the CUE button or touching the jog dial), or when a track is loaded, the master deck switches to the currently playing deck. (It does not switch while in the pause mode.)

The sync function normally synchronizes the BPM and beat position. When the SYNC button is flashing, only the BPM is being synchronized. The button switches from lit to flashing under the conditions described below.
-When the pitch bend operation is performed on the deck that is not the master.
-If BPM of the slave dack is less than the master deck's BPM, even if the tempo is +16%, synchronization is not possible and the "OUT OF RANGE" message appears. If the master deck's tempo is changed after this by moving the tempo slider and set to within the tempo range of the deck that is not the master, the SYNC button flashes.

The flashing can be stopped by following the procedure below.
-Press the SYNC button.
The SYNC button turns off.
-Load a track.
-The deck whose SYNC button is flashing is set as the master deck.

The beat grid adjustment, playlist and cue point memory functions become valid. For the cue point memory function, the point nearest the beginning of the track can be used for auto cueing.
*To use the cue point memory function for auto cueing, update the firmware to version 2.00 or later from the support page.

Using this unit as an access point for purposes other than loading tracks may hinder DJ performances.

No.