1. Introduction
Thank you for choosing the HROEENOI JZ02 Noise Cancelling Headphones. These wireless over-ear headphones are designed to provide a high-quality audio experience with advanced features such as Bluetooth 5.3 connectivity, active noise cancellation, and a built-in microphone for clear calls. This manual will guide you through the setup, operation, and maintenance of your headphones to ensure optimal performance and longevity.
2. Package Contents
Please verify that all items listed below are included in your package:
- HROEENOI JZ02 Headphones
- USB-C Charge Cable
- 3.5mm Audio Cable
- User Guide
- Storage Bag

Image: Contents of the HROEENOI JZ02 headphone package.
3. Headphone Controls and Features
Familiarize yourself with the controls and key features of your JZ02 headphones:
- Power Button: Used to power the headphones on/off.
- Volume Up/Next Track Button: Press to increase volume, hold to skip to the next track.
- Volume Down/Previous Track Button: Press to decrease volume, hold to go to the previous track.
- Multi-function Button (MFB): Play/pause music, answer/end calls, activate voice assistant.
- ANC Button: Activates or deactivates Active Noise Cancellation.
- USB-C Charging Port: For charging the headphones.
- 3.5mm Audio Jack: For wired connection.
- Built-in Microphone: For hands-free calling.

Image: Versatile design features including adjustable headband and folding mechanism.
4. Setup
4.1 Charging the Headphones
Before first use, fully charge your headphones. Connect the provided USB-C charging cable to the headphone's charging port and the other end to a USB power source (e.g., wall adapter, computer USB port).
- A full charge provides up to 60 hours of playtime (ANC off) or 40 hours (ANC on).
- Fast charging: 5 minutes of charging provides approximately 4 hours of listening time.
- The LED indicator will show charging status (specific color/behavior not detailed in product info, assume standard red for charging, blue/green for full).
4.2 Bluetooth Pairing
- Ensure the headphones are powered off.
- Press and hold the Power button until the LED indicator flashes blue and red, indicating pairing mode.
- On your device (smartphone, tablet, computer), enable Bluetooth and search for available devices.
- Select "HROEENOI JZ02" from the list of found devices.
- Once connected, the LED indicator will typically show a solid blue light or flash slowly.
- If prompted for a password, enter "0000".
The headphones will automatically attempt to reconnect to the last paired device when powered on.
5. Operating Instructions
5.1 Power On/Off
- Power On: Press and hold the Power button for approximately 3 seconds until the LED indicator lights up.
- Power Off: Press and hold the Power button for approximately 3 seconds until the LED indicator turns off.
5.2 Active Noise Cancellation (ANC)
The JZ02 headphones feature active noise cancellation to reduce ambient noise by up to 95%.
- Activate ANC: Press the dedicated ANC button. The LED indicator (specific color not detailed, but typically green) will illuminate.
- Deactivate ANC: Press the ANC button again. The LED indicator will turn off.

Image: Illustration of the Active Noise Cancellation feature.
5.3 Making and Receiving Calls
The built-in microphone and CVC8.0 noise reduction technology ensure clear call quality.
- Answer/End Call: Press the Multi-function Button (MFB) once.
- Reject Call: Press and hold the MFB for approximately 2 seconds.
- Redial Last Number: Double-press the MFB.

Image: High-quality call clarity feature.
5.4 Music Playback
- Play/Pause: Press the Multi-function Button (MFB) once.
- Volume Up: Press the Volume Up button.
- Volume Down: Press the Volume Down button.
- Next Track: Hold the Volume Up button.
- Previous Track: Hold the Volume Down button.

Image: Immersive 3D sound experience enabled by Bluetooth 5.3 and CVC 8.0 technology.
5.5 Wired Mode
You can use the headphones with the provided 3.5mm audio cable when the battery is low or for devices without Bluetooth connectivity. Simply plug one end into the headphone's 3.5mm audio jack and the other into your audio source.
6. Wearing the Headphones
The HROEENOI JZ02 headphones are designed for comfort and a personalized fit.
- Adjustable Headband: Extend or retract the headband to fit your head size comfortably.
- 90° Rotation Earcups: The earcups can rotate 90 degrees for a perfect fit and easy storage.
- Soft Texture Earmuffs: The memory foam protein leather earmuffs provide a comfortable feel for extended listening sessions.
7. Care and Maintenance
- Clean the headphones regularly with a soft, dry cloth. Do not use harsh chemicals or abrasive materials.
- Avoid exposing the headphones to extreme temperatures, humidity, or direct sunlight.
- Store the headphones in the provided storage bag when not in use to protect them from dust and scratches.
- Do not attempt to disassemble or modify the headphones, as this will void the warranty.
8. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Headphones do not power on. | Low battery. | Charge the headphones using the USB-C cable. |
| Cannot pair via Bluetooth. | Headphones not in pairing mode; device Bluetooth off; too many paired devices. | Ensure headphones are in pairing mode (flashing blue/red). Turn on device Bluetooth. Forget previous pairings on your device and try again. Move closer to the device. |
| Sound is distorted or intermittent. | Out of Bluetooth range; interference; low battery. | Move closer to your device. Avoid obstacles. Charge the headphones. Try a different audio source. |
| Active Noise Cancellation (ANC) not working. | ANC not activated; potential malfunction. | Press the ANC button to activate it (look for indicator light). If it still doesn't work, contact customer support. |
| Headphones disconnect randomly. | Bluetooth interference; device issue; firmware issue. | Try resetting the headphones (if a reset procedure is available, otherwise power cycle). Re-pair with your device. Ensure no other strong wireless signals are interfering. Test with another device. |
| No sound in wired mode. | Cable not fully inserted; faulty cable; audio source issue. | Ensure the 3.5mm audio cable is securely plugged into both the headphones and the audio source. Test with a different 3.5mm cable if available. Check the audio source's volume and output settings. |
9. Product Specifications
| Feature | Detail |
|---|---|
| Model Name | JZ02 (BJZ02BK) |
| Connectivity Technology | Wireless (Bluetooth 5.3) / Wired (3.5mm Audio Jack) |
| Bluetooth Range | 10 Metres |
| Noise Control | Active Noise Cancellation (up to 95% reduction) |
| Audio Driver Size | 40 Millimetres Dynamic Driver |
| Frequency Response | Up to 20 KHz |
| Impedance | 32 Ohms |
| Battery Life (ANC Off) | Up to 60 Hours |
| Battery Life (ANC On) | Up to 40 Hours |
| Charging Time (Fast Charge) | 5 minutes for 4 hours playtime |
| Microphone | Built-In (CVC8.0 Noise Reduction) |
| Form Factor | Over Ear |
| Material | Faux Leather (earcups) |
| Item Weight | 381 g |
| Product Dimensions (LxWxH) | 17.02 x 8.38 x 19.3 cm |
| UPC | 741365818946 |

Image: Extended playtime capabilities of the headphones.
10. Warranty and Support
HROEENOI is committed to providing high-quality products and customer satisfaction. Your JZ02 headphones come with an enhanced warranty service, offering an additional 2 years of warranty on top of the standard warranty program.
For technical support, warranty claims, or any questions regarding your HROEENOI JZ02 headphones, please contact our customer support team through the retailer's platform or visit the official HROEENOI website for contact information.
Please retain your proof of purchase for warranty service.
