Introduction
Thank you for choosing the OneOdio A71 Hi-Res Studio Recording Headphones. These headphones are designed to provide high-fidelity audio for studio monitoring, mixing, DJing, and general listening. This manual provides essential information for setup, operation, maintenance, and troubleshooting to ensure optimal performance and longevity of your device.
Package Contents
Please verify that all items listed below are included in your package:
- OneOdio A71 Wired Headphones
- 3.5mm Audio Cable with In-Line Microphone
- 3.5mm Jack to 6.35mm Jack Coiled Cable
- User Manual (this document)
- Protective Case (PU Bag)

Product Features
The OneOdio A71 headphones are equipped with several features designed for a superior audio experience:
- Hi-Res Sound Quality: Features 50mm drivers for clear and detailed audio reproduction, suitable for critical listening and professional applications.
- Comfort-Oriented Design: Soft padded ear cushions and an adjustable, stretchable headband ensure comfort during extended use and provide effective sound isolation.
- Versatile Connectivity: Includes both 3.5mm and 6.35mm plugs with a long coiled cord, allowing connection to a wide range of devices such as PCs, amplifiers, keyboards, guitars, and laptops without requiring additional adapters.
- Single-Sided Monitoring: Earcups swivel 90 degrees, enabling convenient single-ear monitoring for DJs or when needing to hear ambient sounds.
- SharePort Technology: An integrated audio port allows another pair of headphones to be connected directly, facilitating audio sharing without the need for an external audio splitter.
- Foldable Design: The headphones can be folded for compact storage and portability.
- Detachable Cables: Cables are detachable for easy replacement and storage.




Setup Instructions
- Identify the Correct Cable:
- For devices with a 3.5mm audio jack (e.g., smartphones, laptops, gaming consoles), use the 3.5mm audio cable.
- For devices with a 6.35mm audio jack (e.g., audio interfaces, amplifiers, mixing consoles), use the 3.5mm to 6.35mm coiled cable.
- Connect to Headphones: Insert the 3.5mm end of your chosen cable into the corresponding port on the left earcup of the OneOdio A71 headphones. Ensure it is fully inserted and twisted clockwise to lock it in place if using the coiled cable with the locking mechanism.
- Connect to Audio Source: Insert the other end of the cable into the audio output jack of your device.
- Adjust Fit: Place the headphones over your ears. Adjust the headband to ensure a comfortable and secure fit. The earcups should fully enclose your ears for optimal sound isolation.


Operating Instructions
Basic Audio Playback
Once connected, audio from your source device will play through the headphones. Adjust the volume directly on your connected device.
Using the In-Line Microphone (3.5mm Cable)
The 3.5mm audio cable includes an in-line microphone and a control button for convenient call management and media playback:
- Play/Pause: Press the control button once to play or pause audio.
- Answer/End Call: Press the control button once to answer an incoming call or end an ongoing call.
- Next Track: Press the control button twice quickly to skip to the next track.
- Previous Track: Press the control button three times quickly to go to the previous track.

Single-Sided Monitoring
The earcups can be swiveled 90 degrees. This feature allows you to monitor audio with one ear while keeping the other ear free to interact with your environment or listen to external sounds, which is particularly useful for DJs or studio professionals.
SharePort Technology
To share audio with another person, connect a second pair of headphones to the unused 3.5mm or 6.35mm port on your OneOdio A71 headphones. This eliminates the need for an external audio splitter.

Maintenance and Care
- Cleaning: Use a soft, dry cloth to clean the headphones. Do not use liquid cleaners or solvents.
- Storage: When not in use, store the headphones in the provided protective case to prevent dust accumulation and physical damage. Fold the headphones to save space.
- Cable Care: Avoid sharp bends or excessive pulling on the cables. Always grasp the plug, not the cable, when disconnecting.
- Temperature: Avoid exposing the headphones to extreme temperatures or high humidity.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| No sound | Cable not fully connected; incorrect audio source selected; device volume too low. | Ensure cables are securely plugged into both headphones and the audio source. Check audio output settings on your device. Increase device volume. |
| Sound distortion | Volume too high; faulty cable; audio source issue. | Reduce volume on your device. Try a different audio cable. Test with another audio source. |
| Microphone not working | Using the wrong cable (6.35mm cable does not have a mic); microphone muted on device; incorrect input device selected. | Ensure you are using the 3.5mm cable with the in-line microphone. Check microphone settings on your device and unmute if necessary. Select the correct input device. |
| Headphones uncomfortable | Improper headband adjustment. | Adjust the headband to fit your head comfortably. Ensure earcups fully cover your ears without excessive pressure. |
Specifications
| Feature | Detail |
|---|---|
| Model Name | A71 |
| Connectivity Technology | Wired |
| Ear Placement | Over Ear |
| Form Factor | Over Ear |
| Noise Control | Sound Isolation |
| Frequency Response | 20 Hz - 20,000 Hz (estimated) |
| Sensitivity | 110 dB |
| Impedance | 32 Ohm |
| Headphones Jack | 3.5 mm / 6.35 mm Jack |
| Cable Length | Up to 9.8 Feet (coiled) |
| Item Weight | 0.31 Kilograms (approx. 10.9 ounces) |
| Material | Plastic (housing), Fabric (carrying case) |
| Special Features | Adjustable Headband, Detachable Cable, Foldable, Lightweight, In-line Microphone (on 3.5mm cable) |
| Included Components | Wired headphones, 3.5mm Audio Cable with In-Line Microphone, 3.5mm to 6.35mm Jack Cable, User Manual, Protective Case |
Warranty and Support
For warranty information and customer support, please refer to the documentation included with your purchase or visit the official OneOdio website. Keep your proof of purchase for any warranty claims.





