AlphaTheta HDJ-F9 Professional On-Ear DJ Headphones

The HDJ-F9 headphones feature SonicLink, AlphaTheta’s own wireless technology. SonicLink delivers
the high-quality sound, powerful volume, and ultra-low latency that DJs need – all wirelessly. Without
cables, you can monitor your mixing, and even scratch, accurately. Latency is as low as 9 msec, so you
can stay fully focused on your performance without noticing any delay

Rich low frequencies and highly effective sound isolation
HDJ-F9 headphones are designed for precise monitoring, even in
loud DJ booths. The newly developed 40 mm drivers deliver powerful, full-bodied low frequencies all
the way down to the sub-bass range. The bass-reflex chamber at the top of each housing accurately
reproduces the attack of basslines and kicks, delivering tight, clearly defined lows. And the PEEK-PUPEEK composite film diaphragm suppresses unwanted vibration, providing a well-balanced mid and
high range with minimal distortion. With an optimized internal structure, the headphones achieve a high
level of sound isolation compared to other on-ear models. So, you can monitor your music comfortably
without turning the volume up too high, reducing strain on your ears.

Durability and minimal design to support every monitoring style
Whichever monitoring style you prefer, the HDJ-F9 headphones adapt to you. The swivel-mounted
hangers and flexible silicone headband are comfortable to wear, whether you’re listening with one ear
or resting the headphones on your shoulder.
To ensure long-term durability, the adjustable slider is made from tough die-cast aluminum. The
headphones have passed international durability tests, offering the reliability that professional DJs need.

Customize your experience with the dedicated HEADPHONES CONNECT app
Using the HEADPHONES CONNECT app on your smartphone, you can adjust the color and brightness
of the Status LED to match your mood or musical style. You can also rename the headphones and
configure the auto-power-off function and voice assistant settings for Siri® or Google AssistantTM.
The built-in Find My Headphones feature lets you locate your headphones by playing a sound, and on
Android devices, it’s also compatible with Find HubTM. The app provides firmware updates and tips,
along with support functions to give you extra peace of mind.

Multipoint Bluetooth® for seamless connection across multiple devices
With multipoint Bluetooth pairing, you can connect your headphones with 2 devices at the same time –
for example, a smartphone and a PC – so you can switch between them effortlessly. There’s also
compatibility with Google Fast Pair and Windows Swift Pair, enabling quick one-touch pairing with
Android or Windows devices.

More features
• With the Status LED illuminated, the battery offers 7 hours’ playback when connected via SonicLink,
and 13 hours’ when using a Bluetooth connection.
• The battery charges from empty to full in approximately 2.5 hours, and a 30-minute charge gives
around 2.5 hours of use.*3
• 1.2 m coiled cable with L-shaped plug included, enabling wired monitoring and extendable up to
approximately 3 m.
• Built-in microphone for hands-free calls.