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Panasonic RP-HT21 Lightweight On-Ear Headphones

BH #PARPHT21 • MFR #RP-HT21
75 reviews
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Panasonic RP-HT21 Lightweight On-Ear Headphones
Key Features
  • XBS System for Big-Sounding Bass
  • Open-Air, On-Ear Design
  • Wide Headband
  • Generous 4.5' Cord
Audio enthusiasts in search of an affordable, yet quality sounding pair of headphones will be thrilled with the Panasonic RP-HT21. The low-end response is due in large part to the company's XBS (Extra Bass System) technology. Featuring an open-air, on-ear design, the headphones weigh only 1.2 ounces and are equipped with a wide headband for additional comfort and support. The cable length is 4.5'.
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$7.99
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Pana onic RP-HT21 Overview

Audio enthusiasts in search of an affordable, yet quality sounding pair of headphones will be thrilled with the Panasonic RP-HT21. The low-end response is due in large part to the company's XBS (Extra Bass System) technology. Featuring an open-air, on-ear design, the headphones weigh only 1.2 ounces and are equipped with a wide headband for additional comfort and support. The cable length is 4.5'.

  • Lightweight headphones weigh just 1.2 ounces without cable
  • 30mm neodymium drivers deliver rich, powerful bass and natural treble
  • XBS port magnifies low-frequency sound for full, robust bass
  • Comfort-fit with a wide headband and foam-cushioned earcups for added listening comfort
  • Long 4.5' cord threads comfortably through clothing and bags
UPC: 037988259052

Pana onic RP-HT21 Specs

Key Specs
Wearing Style
Dual Ear with Headband
Foldable: No
Earpiece Swivel: No
Open/Closed-Back
Semi-Open-Back
Impedance
Not Specified by Manufacturer
Active Noise Cancellation
No
Frequency Response
16 Hz to 22 kHz
Built-In Mic
No
Audio Connector
1x 1/8" / 3.5 mm TRS
Headphone
Wearing Style
Dual Ear with Headband
Foldable: No
Earpiece Swivel: No
Earpiece Design
On-Ear (Supra-Aural)
Open/Closed-Back
Semi-Open-Back
Sound Field
Stereo
Driver Type
Dynamic
Driver Size
1.2" / 30 mm
Impedance
Not Specified by Manufacturer
Active Noise Cancellation
No
Frequency Response
16 Hz to 22 kHz
Built-In Controls
No
Microphone
Built-In Mic
No
Connectivity
Wired Audio Connector
1x 1/8" / 3.5 mm TRS
Cable Design
Non-Detachable / Straight
Cable Length
4.5' / 137.2 cm
Physical
Color
Black / Gray
Environmental Resistance
No
Weight
1.2 oz / 34 g
Packaging Info
Package Weight
0.27 lb
Box Dimensions (LxWxH)
9.2 x 6.65 x 2"

Pana onic RP-HT21 Reviews

Panasonic headphones

By Tim
Rated 5 out of 5
Date: 2025-10-10

Ordered two, cuz I was pleased with the performance the last time I got these. Same satisfaction this time. I use them instead of 'in ear' units for monitoring my performance in our band's sound. works good.

Cheap but low bass

By Roman
Rated 2 out of 5
Date: 2023-01-25

These headphones are cheap, but have low sound and no bass. Sound is too thin. Not recommended.

See any errors on this page?

Is the headphone compatible with airlines sound ...

Is the headphone compatible with airlines sound system?
Asked by: William
You need to have a special adapter (3.5mm TRS female to 2x 3.5mm)
Answered by: Matthew
Date published: 2026-01-16

question

Is the headphone has wire to put it into my microphone?
Asked by: EMAN G.
This model (RP-HT21) does not come with in-line mic. RP-HT21M comes with a mic.
Answered by: EastCoaster
Date published: 2021-09-27

question

Is the audio plug straight or at a 90 degree angle?
Asked by: Rochelle G.
Straight :)
Answered by: Karen D.
Date published: 2018-08-27
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