1. Introduction
Thank you for choosing the ATK N9 Pro Ultra Wireless Gaming Headset. This headset is designed to provide an immersive and high-fidelity audio experience for gamers across multiple platforms. Featuring advanced quad-mode connectivity, powerful 53mm titanium-plated dynamic drivers, and a long-lasting battery, the N9 Pro Ultra ensures clear communication and precise sound localization for a competitive edge. Please read this manual carefully to ensure proper use and maintenance of your device.

2. Package Contents
Ensure all items are present in the package:

- 2.4G Wireless Transmitter (including adapter)
- Type-C to USB-A Data Cable (Detachable)
- Type-C to 3.5mm Audio Cable
- Detachable Microphone
- User Guide
- Safety Specification Guide
3. Setup and Connection
3.1 Charging the Headset
Before first use, fully charge the headset. Connect the provided Type-C to USB-A data cable to the headset's Type-C port and the other end to a computer's USB-A port for charging. The headset cannot be charged using a wall charger directly.

3.2 Connecting the Microphone
The ATK N9 Pro Ultra comes with a detachable 10mm omnidirectional microphone. Insert the microphone into the designated port on the headset until it clicks into place.

3.3 Connection Modes
The headset supports four connection modes for versatile use:

| Connection Mode | Compatible Platforms |
|---|---|
| 2.4G Mode | Mobile, tablet, laptop, desktop, Nintendo Switch, PS4, PS5 |
| Bluetooth Mode | Mobile, tablet, laptop, desktop, Nintendo Switch |
| 3.5mm Mode | Mobile, tablet, laptop, desktop, Nintendo Switch, PS4, PS5, Xbox |
| USB Sound Card Mode | Mobile, tablet, laptop, desktop, Nintendo Switch, PS4, PS5 |
For 2.4G mode, plug the 2.4G wireless transmitter into your device. For Bluetooth, pair the headset via your device's Bluetooth settings. For 3.5mm, use the provided Type-C to 3.5mm audio cable. For USB Sound Card mode, use the Type-C to USB-A data cable.
4. Operating Instructions
4.1 Basic Controls
The headset features intuitive controls located on the earcups:

- Switch 2.4G/Bluetooth: Press 2 times.
- Play/Pause: Press 1 time.
- Volume Increase: Press 1 time.
- Previous Track: Press 2 times.
- Maximum Volume: Long press.
- Volume Decrease: Press 1 time.
- Next Song: Press 2 times.
- Minimum Volume: Long press.
- Microphone On/Off: Press 1 time.
- Spatial Audio On/Off: Press 2 times.
- Ear Monitoring On/Off: Press 3 times.
4.2 Spatial Audio
The "Universe" Spatial Audio feature provides an immersive sound experience with hardware-level virtual algorithm support, enhancing sound localization for gaming. Activate/deactivate this feature using the dedicated control button (press 2 times).

4.3 ATK HUB 3.0 Client Driver
For advanced customization, download and install the ATK HUB 3.0 client driver from WWW.ATKGEAR.COM. This software allows for battery display, various volume adjustments, multi-band EQ adjustment, and virtual 7.1 surround sound customization.

5. Maintenance and Care
- Cleaning: Use a soft, dry cloth to clean the headset. Do not use harsh chemicals or abrasive materials.
- Storage: Store the headset in a cool, dry place away from direct sunlight and extreme temperatures.
- Battery Care: To prolong battery life, avoid fully discharging the headset frequently. Charge it regularly, even if not in use for extended periods.
- Microphone: Handle the detachable microphone with care. Avoid bending or twisting it excessively.
6. Troubleshooting
- No Sound:
- Check if the headset is powered on and connected correctly (2.4G dongle, Bluetooth paired, or 3.5mm cable securely plugged in).
- Ensure the volume is not muted or set too low on both the headset and your device.
- Verify that the correct audio output device is selected in your computer's sound settings.
- Microphone Not Working:
- Ensure the microphone is securely attached and not muted via the headset control.
- Check your device's sound settings to ensure the headset microphone is selected as the input device.
- Restart your application or device.
- Connection Issues (2.4G/Bluetooth):
- Ensure the headset is within range of your device.
- For 2.4G, try re-plugging the wireless transmitter.
- For Bluetooth, unpair and re-pair the headset with your device.
- Ensure there are no strong interfering signals nearby.
- Low Latency (2.4G mode):
- The 2.4G mode offers ultra-low 10ms latency. Ensure you are using the 2.4G wireless transmitter for optimal gaming performance.
- Avoid using the headset in environments with high wireless interference.
7. Specifications
The following table outlines the key specifications for the ATK Neptune N9 Series Wireless Gaming Headset:

| Parameter | N9 Pro | N9 Ultra | N9 Ultra+ |
|---|---|---|---|
| Color Matching | Black/White | Star Orange/Star Pink | Coming soon |
| Sound | "Cosmic" Spatial Audio | Spatial Audio | Spatial Audio |
| Driver Unit | 50mm PET Diaphragm Dynamic Driver Unit | 53mm Titanium Diaphragm Dynamic Driver | 53mm Titanium Diaphragm Dynamic Driver |
| Frequency Response Range | 20Hz-20KHz | 10Hz-40KHz | 10Hz-40KHz |
| Ear Cushions | Protein leather ear cushions | ||
| Microphone Monitoring | Support | ||
| Battery Capacity | 1500mAh | ||
| Battery Life | 130 hours | ||
| Weight | Approximately 270g | ||
| Microphone | "StarPick" Omnidirectional ENC Noise-Cancelling Microphone | ||
| Delay | 10ms Single Direction (2.4G mode) | ||
| Driver | ATK HUB 3.0 Client Driver | ||
| Adaptable Platforms | PC/Android/iOS/NS/PS4/PS5 (all modes), XBOX (3.5mm mode) | ||
| Connection Mode | True 4-in-1 Connection: 2.4G / Bluetooth 5.2 / USB Sound Card / 3.5mm | ||
| More Functions | Virtual 7.1 Surround Sound, Ear Monitoring, Battery Display, EQ Adjustment, Preset Audio Effects | ||
8. User Tips
- For the best gaming experience, utilize the 2.4G wireless connection for its ultra-low 10ms latency.
- Experiment with the ATK HUB 3.0 software to customize EQ settings and spatial audio to match your preferences for different games or media.
- The headset's lightweight design and protein leather ear cushions are built for comfort during long sessions; ensure proper headband adjustment for a snug fit without excessive pressure.
- Take advantage of the detachable microphone for clear communication in multiplayer games, and remember to activate ENC for noise reduction in noisy environments.
9. Warranty and Support
For product downloads, driver updates, and further support, please visit the official ATK GEAR website: WWW.ATKGEAR.COM. Information regarding warranty coverage and service options can also be found on the official website or by contacting ATK customer support.