Porta Pro - Headphones Koss - Free user manual and instructions
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| Product type | On-ear stereo headphones |
| Brand | Koss |
| Model | Porta Pro |
| Frequency response | 15-25,000 Hz |
| Impedance | 60 ohms |
| Sensitivity | 101 dB SPL |
| Driver technology | Dynamic element |
| Headphone design | Supra-aural (on-ear), foldable |
| Weight | 60 g (with cable) |
| Cable length | 4 ft (1.2 m) |
| Connector | 3.5 mm gold-plated plug |
| Headband | Adjustable, lightweight steel construction |
| Ear cushions | Foam-filled, replaceable |
| Accessories included | Carrying case |
| Battery | None required (passive) |
| Warranty | Limited lifetime warranty |
| Compatibility | Any device with 3.5 mm headphone jack |
| Cleaning | Wipe with a soft dry cloth |
| Safety | Listen at moderate volumes to prevent hearing damage |
| Parts and repairability | Replacement ear cushions and cables available from Koss |
| General information | Flagship portable headphone since 1984 |
Frequently Asked Questions - Porta Pro Koss
What makes the Koss Porta Pro unique?
The Koss Porta Pro combines portable foldable design with lifetime warranty and signature open-air sound, making it a cult classic since 1984.
Are the ear cushions replaceable?
Yes, the foam ear cushions are replaceable. Koss sells official replacement parts, and you can also find third-party options for customization.
Is the headphone foldable for travel?
Absolutely. The Porta Pro features a collapsible design that folds flat for easy storage in the included carrying case.
Do I need a battery to use them?
No, the Porta Pro is fully passive. It requires no battery or charging—just plug into any 3.5 mm audio jack.
What devices can I use them with?
Use them with smartphones, tablets, laptops, MP3 players, and hi-fi systems—any device with a 3.5 mm headphone jack.
How do I clean and maintain the Porta Pro?
Wipe the headband and earcups with a soft dry cloth. Avoid moisture and harsh chemicals. Store in the case when not in use to prevent damage.
Does the Koss Porta Pro have a warranty?
Yes, it comes with Koss's Limited Lifetime Warranty against defects in materials and workmanship for your peace of mind.
How long is the cable?
The attached cable is 4 feet (1.2 meters) long, ideal for portable use.
Are there different color options?
Yes, the Porta Pro is available in several colors, including black and blue, as well as limited editions.
How do I adjust the headband properly?
Slide the earcups along the adjustable steel headband until they fit comfortably over your ears. The headband should rest lightly on your head.
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USER MANUAL Porta Pro Koss
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Product information
Brand : Koss
Model : Porta Pro
Category : Headphones