We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Lightweight on-ear headphones with wide headband, foam earcups and 3.5 mm cable

Panasonic

Panasonic RP-HT21 30mm Wired On-Ear Headphones

SKU CH-N9ST-3029P

Lightweight on-ear headphones with 30mm neodymium drivers, XBS bass port and a 4.5ft cord

  • Driver size1.2 in / 30 mm
  • Frequency range16 Hz to 22 kHz
  • Impedance16 ohms
  • Audio sensitivity100 dB
  • Connection3.5 mm Jack
  • Cord length4.5' / 137.2 cm
  • Lightweight comfort from a 1.2 ounce frame
  • Rich bass and treble via 30mm neodymium drivers
  • Deep low-frequency boost through XBS port design
  • Secure fit with wide headband and foam earcups
  • Freedom of movement with a 4.5 foot cable

Lightweight On-Ear Headphones

The Panasonic RP-HT21 is a wired on-ear headphone weighing 1.2 ounces without the cable. Its open-air design and wide headband suit listeners who want a light fit for daily use. 30 mm neodymium drivers cover a frequency response of 16 Hz to 22 kHz with 100 dB sensitivity.

Check Your Device Jack

Verify that your source has a 3.5 mm headphone socket before ordering. The fixed 4.5 ft cable ends in a straight 3.5 mm plug and cannot be detached or adapted. Impedance is 16 ohms, so most portable players and computers will drive it directly.

Open-Air Fit For Quiet Spaces

The open-air cups let sound pass both ways, so they work best in quiet rooms rather than noisy travel. Foam-cushioned earcups and the wide headband spread pressure for long sessions. The 4.5 ft cord threads through clothing or bags without pulling, and the light weight keeps neck strain low.

How it compares

Measured against everything we stock in Earbuds & Over-Ear Headphones, at today’s prices. Recalculated every night.

Price $20.99
Cheaper than about 58% of the 7,078 comparable items (median $25.99).

Specifications

Product
Brand namePanasonic
Product lineRP-HT21
Model namePanasonic RP-HT21
Product typeHeadphone
Performance
Supported distanceCable Length
4.5' / 137.2 cm
Audio & video
Driver size1.2 in / 30 mm
Frequency range16 Hz to 22 kHz
Impedance16 ohms
Audio sensitivity100 dB
Ports & slots
Connection3.5 mm Jack
Size & build
Cord length4.5' / 137.2 cm
Product weight0.27 lb (0.12 kg)
In the box
In the boxPanasonic RP-HT21 Lightweight On-Ear Headphones,
Limited 90-Day Manufacturer Warranty

Questions about this item

What comes in the box with the RP-HT21 and is any extra cable or adapter needed?

The box contains the headphones and a 90-day manufacturer warranty; the fixed 4.5 ft 3.5 mm cable is already attached so no separate cord or adapter is required.

How do I decide between the 30 mm driver version and any other size listed for this model?

This model is offered only with the 30 mm neodymium driver, so there is no alternative driver size to choose from.

What does the 100 dB sensitivity rating mean when I plug these into my phone or laptop?

At 100 dB sensitivity and 16 ohms impedance, the headphones reach loud volume easily from a standard 3.5 mm jack without needing an external amplifier.

More in Earbuds & Over-Ear Headphones

Similar items