Panasonic RP-HJE120B-K
Panasonic RP-HJE120B-K Bluetooth Earbud Headphones User Manual
Model: RP-HJE120B-K
1. Product Overview
The Panasonic RP-HJE120B-K Bluetooth Earbud Headphones offer wireless audio with an integrated microphone and call controller. Designed for comfort and clear sound, these in-ear headphones are compatible with various Bluetooth-enabled devices.

Image 1.1: Panasonic RP-HJE120B-K Bluetooth Earbud Headphones, black color, showing the earbuds connected by a cable with an inline remote and battery unit.
Key Features:
- Bluetooth Connectivity: Seamlessly connect to Bluetooth-enabled devices for wireless audio.
- Integrated Microphone & Call Controller: Manage calls and audio playback directly from the headphone cable.
- Ergo Fit Design: Ergonomically shaped earbuds with S/M/L ear pads for a secure and comfortable fit.
- Dynamic Audio: Features 9mm neodymium drivers for balanced sound with clear highs and deep bass.
- Quick Charge Function: Provides 1 hour of playback with a 20-minute charge.
2. What's Included
Verify that all items are present in the package:
- Panasonic RP-HJE120B-K Earbud Headphones
- USB Charging Cord (1)
- Earbud Earpads (3 pairs: Small, Medium, Large)
3. Initial Setup
3.1 Charging the Headphones
Before first use, fully charge the headphones. A full charge provides approximately 4 hours and 20 minutes of continuous use. The quick charge feature offers 1 hour of playback from a 20-minute charge.
- Connect the supplied USB charging cord to the charging port on the headphone's inline controller.
- Connect the other end of the USB cord to a powered USB port (e.g., computer, USB wall adapter).
- The indicator light will show charging status (refer to the LED indicator section for details, if available).
- Once fully charged, disconnect the USB charging cord.
3.2 Bluetooth Pairing
To connect your headphones to a device via Bluetooth:
- Ensure the headphones are turned off.
- Press and hold the power button on the inline controller until the indicator light flashes alternately red and blue, indicating pairing mode.
- On your device (smartphone, tablet, etc.), enable Bluetooth and search for available devices.
- Select "RP-HJE120B-K" from the list of found devices.
- Once paired, the indicator light on the headphones will typically flash blue slowly.
- If prompted for a passcode, enter "0000".
The headphones will automatically attempt to reconnect to the last paired device when turned on.
3.3 Selecting Ear Pads for Optimal Fit
The headphones come with three sizes of ear pads (S, M, L) to ensure a comfortable and secure fit, which is crucial for sound quality and noise isolation.
- Try each size of ear pad to determine which provides the best seal and comfort in your ear canal.
- Gently remove the pre-installed ear pads by twisting and pulling.
- Push the desired ear pads onto the earbud nozzle until they are securely attached.

Image 1.2: Panasonic RP-HJE120B-K Bluetooth Earbud Headphones in blue, demonstrating their compact design suitable for daily use alongside a smartphone and coffee.
4. Operating the Headphones
4.1 Power On/Off
- To Power On: Press and hold the power button until the indicator light flashes blue.
- To Power Off: Press and hold the power button until the indicator light flashes red and then turns off.
4.2 Music Playback
Use the inline controller for music control:
- Play/Pause: Press the multi-function button (usually the center button).
- Next Track: Press and hold the Volume Up (+) button.
- Previous Track: Press and hold the Volume Down (-) button.
- Volume Up: Short press the Volume Up (+) button.
- Volume Down: Short press the Volume Down (-) button.
4.3 Phone Calls
The integrated microphone and call controller allow for hands-free calling:
- Answer Call: Press the multi-function button once when a call comes in.
- End Call: Press the multi-function button once during a call.
- Reject Call: Press and hold the multi-function button for approximately 2 seconds when a call comes in.
- Voice Assistant: Double-press the multi-function button to activate your device's voice assistant (e.g., Siri, Google Assistant).
5. Care and Maintenance
- Cleaning: Wipe the headphones and ear pads with a soft, dry cloth. For ear pads, they can be gently removed and cleaned with mild soap and water, then thoroughly dried before reattaching.
- Storage: Store the headphones in a cool, dry place away from direct sunlight and extreme temperatures.
- Avoid Moisture: These headphones are not waterproof. Avoid exposure to excessive moisture, rain, or sweat.
- Battery Care: To prolong battery life, avoid fully discharging the battery frequently. Charge regularly, even if not in use for extended periods.
6. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Headphones do not power on. | Battery is depleted. | Charge the headphones using the supplied USB cable. |
| Cannot pair with a device. | Headphones not in pairing mode; device's Bluetooth is off; headphones already paired to another device. | Ensure headphones are in pairing mode (flashing red/blue). Turn on Bluetooth on your device. Disconnect from other devices if necessary. |
| No sound or low volume. | Volume too low on headphones or device; headphones not properly connected; ear pads not sealed correctly. | Increase volume on both headphones and device. Re-pair headphones. Adjust earbud fit and try different ear pad sizes. |
| Sound cuts out or stutters. | Interference; device too far from headphones; low battery. | Move closer to your device (within 10 meters). Avoid obstacles. Charge headphones. Avoid environments with strong Wi-Fi or other Bluetooth signals. |
| Microphone not working. | Microphone blocked; device settings. | Ensure microphone is not covered. Check audio input settings on your connected device. |
7. Specifications
| Model Name | RP-HJE120B-K |
| Connectivity Technology | Bluetooth |
| Bluetooth Version | 4.2 |
| Bluetooth Range | Up to 10 meters (33 feet) |
| Ear Placement | In Ear |
| Audio Driver Type | Dynamic Driver (9mm) |
| Frequency Response | 5 Hz - 40 kHz |
| Impedance | 16 Ohm |
| Battery Life | Approximately 4.3 hours (continuous use) |
| Quick Charge | 1 hour playback from 20-minute charge |
| Item Weight | 1.76 ounces (approx. 50g) |
| Included Components | Earbud Headphones, USB Charging Cord, 3 pairs of Earbud Earpads (S/M/L) |
8. Warranty Information
Specific warranty details for the Panasonic RP-HJE120B-K headphones may vary by region and retailer. Please refer to the warranty card included with your product or visit the official Panasonic website for detailed information regarding warranty coverage and terms.
9. Customer Support
For further assistance, technical support, or service inquiries, please contact Panasonic customer support through their official website or the contact information provided in your product packaging.
You can typically find support resources, FAQs, and contact details on the official Panasonic website: www.panasonic.com
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