A closer look
Your stereo studio. With room to move.
This listing includes two UNIT-4 monitors and the X02 wireless transmitter. Set up a stereo listening position at your desk, then take the battery-powered monitors to another creative space. Use W+ Link for music creation, Bluetooth for everyday listening, or a compatible audio cable.

Two monitors
The pair listing includes two speakers and an X02 transmitter.
Up to 20 hours
Battery playback lets you move beyond a fixed desk setup.
16 ms latency
Uncompressed 44.1 kHz / 16-bit wireless audio.

PORTABLE STEREO
Make music where you feel creative.
A compact stereo pair with battery power gives you more freedom to position your speakers. Each monitor has a 4-inch woofer and 1-inch silk-dome tweeter for music creation and critical listening.

WIRELESS OR WIRED
Choose how you connect.
Use the included X02 transmitter for W+ Link, Bluetooth 5.2 for convenient listening, or the mini-jack and balanced jack inputs for a wired setup. Adjust the five-band EQ in the AIAIAI app to suit your listening position.

REPLACEABLE COMPONENTS
Designed to keep working.
UNIT-4 is designed for disassembly and component replacement, including the battery and drive units. Its main plastic components use recycled material, so a worn component does not have to mean replacing the whole speaker.
The essentials
| Product type | Portable studio monitors |
|---|---|
| Package | Pair - 2 monitors |
| Connection | W+ Link, Bluetooth 5.2, Analogue |
| Battery playback | Up to 20 hours |
| Frequency range | 40Hz to 40kHz (-10dB) |
| Frequency response | 50Hz to 20kHz (±2dB) |
| W+ Link latency | 16 ms |
| Bluetooth version | 5.2 |
In the box
- UNIT-4 Wireless+ monitors (pair)
- Power supplies (2)
- Protective pouches (2)
- X02 W+ Link transmitter
A few things to know.
What should I check before buying?
For a studio desk, add UNIT-4 isolation pads. Choose the carrying case when you regularly move the pair between spaces.













































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