---
product_id: 333221482
title: "Koss x Retrospekt P/21 Retro On-Ear Headphones, Retro Orange Foam, Adjustable Headband, Wired 3.5mm Plug, Orange Black and Silver"
brand: "koss"
price: "2052557₫"
currency: VND
in_stock: true
reviews_count: 13
url: https://www.desertcart.vn/products/333221482-koss-x-retrospekt-p-21-retro-on-ear-headphones-retro
store_origin: VN
region: Vietnam
---

# 32 Ohms impedance for easy drive 30-17,000 Hz frequency range 104 dB sensitivity for crisp sound Koss x Retrospekt P/21 Retro On-Ear Headphones, Retro Orange Foam, Adjustable Headband, Wired 3.5mm Plug, Orange Black and Silver

**Brand:** koss
**Price:** 2052557₫
**Availability:** ✅ In Stock

## Summary

> 🎶 Retro style meets next-level sound—don’t just listen, experience it!

## Quick Answers

- **What is this?** Koss x Retrospekt P/21 Retro On-Ear Headphones, Retro Orange Foam, Adjustable Headband, Wired 3.5mm Plug, Orange Black and Silver by koss
- **How much does it cost?** 2052557₫ with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/333221482-koss-x-retrospekt-p-21-retro-on-ear-headphones-retro)

## Best For

- koss enthusiasts

## Why This Product

- Trusted koss brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Iconic Retro Style:** Bold orange foam and sleek metal accents make a statement that’s as stylish as your curated playlist.
- • **Plug & Play Simplicity:** Universal 3.5mm wired connection compatible with all your favorite devices—no fuss, just pure sound.
- • **Perfect Fit for Every Head:** Adjustable headband adapts seamlessly to your unique shape—comfort that makes you forget you’re wearing headphones.
- • **Light as Air, Built to Last:** Ultra-lightweight stainless steel frame ensures all-day comfort without compromising durability.
- • **Vintage Vibes, Modern Clarity:** Hear-through open-back design delivers an expansive, immersive audio experience that stands out in any playlist.

## Overview

The Koss X Retrospekt P21 Retro Headphones combine a classic open-back design with modern audio precision, featuring a 30-17,000 Hz frequency response, 32 Ohms impedance, and 104 dB sensitivity. Crafted with ultra-lightweight stainless steel and an adjustable headband, these wired on-ear headphones deliver comfort and clarity in a bold retro orange finish, perfect for audiophiles who crave style and substance.

## Description

Product description The ultimate retro headphones, made by Koss. They combine classic orange foam and a flexible and adjustable metal band to provide an unmatched throwback look, but are so much more than just aesthetics. Powered by Koss technology, these stereophones offer state-of-the-art sound reproduction and intensity for unmatched sonic richness.

Review: Replacing my comparable old Sony headphones. - These are really impressive for the price and design. I have a pair of old Sony MDR-005 that I wear when casually listening to my Walkman DAP around the house. These headphones sound much better. They have great range and are very clear. The bass is very full and strong while not being overwhelming. My Sony headphones are getting up in age so these will be the replacement and I am more than happy with that. I am a guy with a pretty big head and these fit comfortably, I forget I am wearing them. If you been considering these for the form and function I say go for it!
Review: Great dont listen to the other bad reviews 👍👍 - These are great and still have clarity and bass. Bass just doesn't hit super hard. But im not going to be a drama queen over it. These are meant to be vintage.

## Features

- Frequency Response: 30-17,000 Hz - Impedance: 32 Ohms - Sensitivity: 104 dB SPL - 4 foot Cord
- Hear-through open-back design that delivers an exceptional, expansive listening experience
- Durable, ultra lightweight stainless steel design
- Integrated size-adjustable headband
- International products have separate terms, are sold from abroad and may differ from local products, including fit, age ratings, and language of product, labeling or instructions.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B092DX27G9 |
| Additional Features | Hear-through open-back design |
| Age Range Description | Adult |
| Antenna Location | Calling, Gaming, Music |
| Audio Driver Type | Dynamic Driver |
| Best Sellers Rank | #30,356 in Electronics ( See Top 100 in Electronics ) #412 in On-Ear Headphones |
| Brand | Koss |
| Brand Name | Koss |
| Built-In Media | Cable |
| Cable Features | Retractable |
| Carrying Case Material | Stainless steel |
| Color | Orange |
| Compatible Devices | Any audio device with a 3.5mm audio jack or wireless capabilities |
| Connectivity Technology | Wired |
| Control Method | Remote |
| Control Type | Media Control |
| Controller Type | Wired |
| Customer Package Type | FFP |
| Customer Reviews | 4.5 out of 5 stars 167 Reviews |
| Ear Placement | On Ear |
| Earpiece Shape | On-Ear |
| Enclosure Material | Metal |
| Form Factor | On Ear |
| Frequency Range | 30 Hz - 17,000 Hz |
| Frequency Response | 17000 Hz |
| Headphone Folding Features | On Ear |
| Headphone Jack | 3.5 mm Jack |
| Headphones Ear Placement | On Ear |
| Impedance | 32 Ohms |
| Is Autographed | No |
| Manufacturer | Koss |
| Model Name | Retro On-Ear Headphones |
| Model Number | P/21 |
| Noise Control | None |
| Number of Items | 1 |
| Sensitivity | 104 dB |
| Specific Uses For Product | Music |
| Style Name | Retro |
| Theme | Retro |
| UPC | 021299197639 021299196670 |
| Unit Count | 1.0 Count |
| Warranty Description | Limited 1-year manufacturer warranty |
| Water Resistance Level | Not Water Resistant |
| Wireless Technology | Bluetooth |

## Product Details

- **Brand:** Koss
- **Color:** Orange
- **Ear Placement:** On Ear
- **Form Factor:** On Ear
- **Impedance:** 32 Ohms

## Images

![Koss x Retrospekt P/21 Retro On-Ear Headphones, Retro Orange Foam, Adjustable Headband, Wired 3.5mm Plug, Orange Black and Silver - Image 1](https://m.media-amazon.com/images/I/716Ss8sYruL.jpg)
![Koss x Retrospekt P/21 Retro On-Ear Headphones, Retro Orange Foam, Adjustable Headband, Wired 3.5mm Plug, Orange Black and Silver - Image 2](https://m.media-amazon.com/images/I/71Z-84VSIkL.jpg)
![Koss x Retrospekt P/21 Retro On-Ear Headphones, Retro Orange Foam, Adjustable Headband, Wired 3.5mm Plug, Orange Black and Silver - Image 3](https://m.media-amazon.com/images/I/61oHG7kx8eL.jpg)
![Koss x Retrospekt P/21 Retro On-Ear Headphones, Retro Orange Foam, Adjustable Headband, Wired 3.5mm Plug, Orange Black and Silver - Image 4](https://m.media-amazon.com/images/I/71ApUngkdFL.jpg)
![Koss x Retrospekt P/21 Retro On-Ear Headphones, Retro Orange Foam, Adjustable Headband, Wired 3.5mm Plug, Orange Black and Silver - Image 5](https://m.media-amazon.com/images/I/71vOR-Z14rL.jpg)

## Questions & Answers

**Q: Are these essentially the same as the KPH40?**
A: looks like it except for the orange foam cushion.  mine sound clear and bright, great midrange and presence.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Replacing my comparable old Sony headphones.
*by K***H on July 30, 2025*

These are really impressive for the price and design. I have a pair of old Sony MDR-005 that I wear when casually listening to my Walkman DAP around the house. These headphones sound much better. They have great range and are very clear. The bass is very full and strong while not being overwhelming. My Sony headphones are getting up in age so these will be the replacement and I am more than happy with that. I am a guy with a pretty big head and these fit comfortably, I forget I am wearing them. If you been considering these for the form and function I say go for it!

### ⭐⭐⭐⭐⭐ Great dont listen to the other bad reviews 👍👍
*by D***N on January 26, 2026*

These are great and still have clarity and bass. Bass just doesn't hit super hard. But im not going to be a drama queen over it. These are meant to be vintage.

### ⭐⭐⭐⭐⭐ Excellent purchase
*by M***R on December 31, 2024*

These are Koss Retrospekt headphones and they are crucial for full Eighties nerdiness. I won’t go into the long, fairly harrowing story of how they got here, but if you want a pair it’s quickest to order them from the USA on Amazon.com (as opposed to .co.uk). The best sound quality version of these are the KPH40 but they have black ear pads, although orange ones can be bought separately, and a black headband. I had black earpads in the actual Eighties so they’re not wrong but I wanted the brushed steel headband and the orange pads. They have no microphone or volume control as headphones with these functions, such as my Bang & Olufsens, will only play in one ear when plugged into a Walkman unless the jack plug is slightly pulled out. Something about three lines vs two lines on the jack pin. But I’m just nerding aloud. Suffice to say, they are light as a feather to wear, far better quality headphones than they look and the listening experience is 100% authentic to the time, right down to the noise leak that would drive people on the bus to distraction 😎

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*Product available on Desertcart Vietnam*
*Store origin: VN*
*Last updated: 2026-05-18*