Panasonic RP-HT21M Lightweight On-Ear Headphones

BH #PARPHT21M • MFR #RP-HT21M
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Panasonic RP-HT21M Lightweight On-Ear Headphones
Key Features
  • Built-In Microphone for Taking Calls
  • XBS System for Big-Sounding Bass
  • Open-Air, On-Ear Design
  • Wide Headband
Audio enthusiasts in search of an affordable, yet quality sounding pair of headphones will be thrilled with the Panasonic RP-HT21M. The built-in microphone allows you to make and take calls with ease. 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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Panasonic RP-HT21M Overview

Audio enthusiasts in search of an affordable, yet quality sounding pair of headphones will be thrilled with the Panasonic RP-HT21M. The built-in microphone allows you to make and take calls with ease. 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: 885170425880

Panasonic RP-HT21M 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
Yes (on Cable)
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
Yes (on Cable)
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
0.315 lb
Box Dimensions (LxWxH)
8.75 x 6.5 x 2"

Panasonic RP-HT21M Reviews

It's actually HT21 with inline mic

By Matthew
Rated 4 out of 5
Date: 2026-01-22

You may "bend" a bit if you have big skull for optimized comfort. Mic is on the right cable with play/pause control. A friendly reminder: make you get TRRS - TRRS short cable so the plug can go through your phone. Generally, I am satisfied

they work

By Jonathan
Rated 4 out of 5
Date: 2025-06-29

What can I say about basic over ear headphones with a mic? They work, bass isn't stupendous. I hope the foam crumbles before the some plastic part breaks, but ideally either event is years away.

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