






🎧 Own the Retro Soundwave – Where Classic Style Meets Sonic Power
The Koss x Retrospekt P/21 Retro On-Ear Headphones combine iconic retro aesthetics with advanced audio technology, featuring a 30-17,000 Hz frequency response, 32 Ohms impedance, and 104 dB sensitivity. Designed with a durable, lightweight stainless steel adjustable headband and an open-back hear-through design, these wired headphones deliver expansive, high-fidelity sound compatible with any 3.5mm audio device. Perfect for music lovers craving vintage style without compromising on modern sound quality.




| Noise Control | None |
| Frequency Response | 17000 Hz |
| Sensitivity | 104 dB |
| Headphones Jack | 3.5 mm Jack |
| Model Name | Retro On-Ear Headphones |
| Connectivity Technology | Wired |
| Wireless Communication Technology | Bluetooth |
| Included Components | Cable, Ear Cushions, Headband |
| Age Range (Description) | Adult |
| Material | Metal |
| Specific Uses For Product | Music |
| Recommended Uses For Product | Calling, Gaming, Music |
| Compatible Devices | Any audio device with a 3.5mm audio jack or wireless capabilities |
| Control Type | Media Control |
| Cable Feature | Retractable |
| Water Resistance Level | Not Water Resistant |
| Customer Package Type | FFP |
| Style | Retro |
| Control Method | Remote |
| Number of Items | 1 |
| Controller Type | Wired |
| Audio Driver Type | Dynamic Driver |
| Carrying Case Material | Stainless steel |
| Earpiece Shape | On-Ear |
| Hardware Interface | 3.5mm Audio |
| UPC | 021299197639 021299196670 |
| Special Feature | Adjustable Headband |
| Manufacturer | Koss Corporation |
| Model | P/21 |
| Package Dimensions | 22.2 x 15.29 x 5.51 cm; 109 g |
| Item model number | P/21 |
| Special Features | Adjustable Headband |
| Batteries Included | No |
| Batteries Required | No |
| Cable feature | Retractable |
| Country of Origin | USA |
| Item Weight | 109 g |
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