1. Setup
1.1 Unpacking
Carefully remove all components from the packaging. Ensure the following items are present:
- Panasonic RPHJE120 In-Ear Headphones
- Three pairs of soft earpads (sizes Small, Medium, Large)

Image: Panasonic RPHJE120 In-Ear Headphones shown in their original retail packaging, displaying the headphones and included earpads.
1.2 Choosing the Right Earpads
Selecting the correct earpad size is crucial for optimal sound quality and comfort. Experiment with the three included sizes (Small, Medium, Large) to find the best fit for your ears. A proper fit will provide better bass response and passive noise isolation.
1.3 Connecting to Your Device
The Panasonic RPHJE120 headphones feature a 3.5 mm L-shape plug for universal compatibility. Simply insert the 3.5 mm plug into the audio jack of your compatible device. These headphones are compatible with both Android phones and iOS devices.
Video: An official overview of the Panasonic RPHJE120 In-Ear Headphones, demonstrating key features and design.
2. Operating Your Headphones
2.1 Basic Use
Gently insert the earpieces into your ears. The ergonomic design is intended to provide a secure and comfortable fit. The headphones offer passive noise cancellation, which helps to reduce ambient sound by physically blocking the ear canal.
2.2 Audio Playback and Calls
Once connected to your device, you can use the headphones for listening to music, podcasts, and other audio content. They are also suitable for making and receiving calls, utilizing your device's built-in microphone and controls.
2.3 Phone Control Functionality
The Panasonic RPHJE120 headphones support basic phone control functions when connected to compatible Android or iOS devices. Control functionality is typically managed directly through your connected device's interface.
3. Maintenance
3.1 Cleaning
To maintain hygiene and performance, regularly clean your headphones. Remove the earpads and gently wipe them with a soft, damp cloth. For the headphone body, use a dry, soft cloth to remove dust and debris. Do not use harsh chemicals or immerse the headphones in water.
3.2 Storage
When not in use, store your headphones in a clean, dry place away from extreme temperatures and direct sunlight. Avoid tangling the cable to prevent damage to the internal wiring.
4. Troubleshooting
4.1 No Sound
- Ensure the 3.5 mm plug is fully inserted into your device's audio jack.
- Check the volume settings on your connected device.
- Verify that your device's audio output is directed to the headphones.
- Test the headphones with another device to rule out a device-specific issue.
4.2 Poor Sound Quality
- Ensure the earpads are correctly sized and properly seated in your ears for a good seal.
- Check the audio source for quality issues.
- Inspect the cable and plug for any visible damage.
4.3 Compatibility Issues
The Panasonic RPHJE120 headphones are designed for devices with a standard 3.5 mm audio jack. If your device lacks this port, an adapter (not included) may be required.
5. Specifications
| Feature | Specification |
|---|---|
| Model Name | FBA_RP-HJE120 |
| Connectivity Technology | Wired |
| Headphones Jack | 3.5 mm Jack |
| Impedance | 16 Ohms |
| Frequency Response | 16 KHz |
| Noise Control | Passive Noise Cancellation |
| Ear Placement | In Ear |
| Form Factor | In Ear |
| Material | Plastic, Silicone |
| Item Weight | 0.141 ounces (4 Grams) |
| Package Dimensions | 7.32 x 2.6 x 2.09 inches |
| Included Components | Earplugs (Earpads) |
| Compatible Devices | Cellphones |
| Recommended Uses | Music, Calling |
| Special Feature | android-phone-control, ios-phone-control |
6. Warranty and Support
6.1 Warranty Information
This product is covered by Panasonic's standard manufacturer's warranty. Please refer to the warranty card included with your purchase or visit the official Panasonic website for detailed warranty terms and conditions.
6.2 Customer Support
For further assistance, technical support, or service inquiries, please visit the official Panasonic support website or contact their customer service department. Contact information can typically be found on the Panasonic website or in your product packaging.





