Description
From the manufacturer

The Panasonic ErgoFit In-Ear Earbuds Headphones RP-HJE120-K combine sound, fit and comfort with nine color choices and three earpad size options for the ultimate in personal style and listening pleasure.

Panasonic ErgoFit In-Ear Earbuds Headphones RP-HJE120-K
Dynamic Sound and Ergonomic Comfort-Fit Design
An upgrade to stock earbuds, the Panasonic ErgoFit In-Ear Earbuds Headphones RP-HJE120-K combine dynamic sound quality and versatile styling with a comfortable fit. Featuring large, 9mm neodymium drivers along with a wide frequency response range, these detailed earbuds deliver dynamic, crystal-clear sound while blocking ambient noise. Three included sets of earpads (S/M/L) offer an ergonomic fit that won’t slip out while you’re active. Nine vivid color options with color-matching 3.6-ft cords let you complement your fashion, iPhone or iPod and accessories.
At a Glance:
- Powerful, 9mm neodymium drivers offer a wide frequency response
- Three earpad size options (S/M/L) included for a comfortable fit
- Available in nine colors to complement your style
- Convenient 3.6-ft cord for flexibility and comfort

Powerful Neodymium Drivers for High-Quality Audio
Enjoy your music to the fullest with large, 9mm neodymium magnet drivers for crystal-clear highs and deep, impactful lows. Combining a wide frequency response range of 20Hz – 20kHz, 200mW maximum input power and 96B/mW sensitivity, these powerful earbuds ensure you’ll hear every detail in your favorite tunes, from the crisp strings of classical music, to the powerful bass beats of pop and hip hop.
Features & Benefits
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ErgoFit Design for Ultimate Comfort and Noise IsolationUltra-soft and comfortable, the snug, elliptical-shaped earbuds conform instantly to your ears to help ease fatigue and block ambient noise. Three pairs are included (small, medium, large) to ensure a perfect fit for every ear. |
Nine Color Options for Personalized StylingExpress your individuality while enjoying your favorite music. With nine brilliant color variations available, you’ll always find one that best matches your personal style, audio player and mood. |
Comfort-Length, 3.6-Foot Cord for Extra ConvenienceA comfort-length, 3.6-foot color-matched cord provides the flexibility and comfort needed for an active day. It can be easily threaded through a jacket, bag or backpack. |
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Panasonic RP-HJE120 Series | Panasonic RP-HJE140 Series | Panasonic RP-HJE355K Series | Panasonic RP-HV21 Series | Panasonic RP-HJE295 Series | |
Design | In-Ear Ergo Fit Design | In-Ear L-Shaped Design | In-Ear Design | Elastomer In-Ear Drops Design | In-Ear Ergo Fit Design |
Three Pairs of Soft Earpads (S/M/L) | Yes | Yes | Yes | No | Yes |
Drive Unit | 9mm | 9.3mm | 10.7mm | 14.8mm | 10.7mm |
Impedance (ohm/1kHz) | 16 | 16 | 16 | 16 | 16 |
Cord Length | 3.6 ft. | 3.9 ft. | 3.9 ft. | 3.6 ft. | 2 ft. + 0.6m extension cord |
Plug | Nickel | Nickel | Gold | Nickel | Gold |
Frequency Response (Hz-kHz) | 20-20 | 6-25 | 6-24 | 10-25 | 6-24 |
Weight without cord | 0.14 oz. | 0.14 oz. | 0.11 oz. | 0.21 oz. | 0.11 oz. |
In-Cord Volume | No | No | No | No | No |
Sensitivity (dB/mW) | 96 | 107 | 105 | 104 | 104 |
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