Headphones Koss KSC21

Name: Headphones Koss KSC21 190056
Brand: Koss
SKU: 1218861
Price: 11.99 EUR
Availability: InStock

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Short description

The Koss KSC21 headphones feature a neck-band design, ideal for music lovers. With a frequency range of 50 - 18000 Hz, they deliver clear sound quality. The 1.2 m cable provides flexibility and comfort during use, making them perfect for everyday listening.

Available at price 11.99 €: 19 pcs.

Total available for order: 43 pcs.

Warranty: 2 Years

SKU: 1218861

Manufacturer: Koss

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Cheapest delivery:

Venipak Pickup LV, Venipak Locker LV

Pick-up points

Venipak Pickup LV

Venipak Locker LV

Cost

1.89 €

Deliver

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Customer service center

2b. Kengaraga str., Riga, Latvia, LV-1063

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Courier Delivery Please note that in case of a large parcel additional delivery costs may apply!

13.07.2026 {{selectedOffer.courierDeliveryString}}

From 4.99 € (Weight: 0.04 kg)

Parcel couriers

Venipak Pickup LV / Venipak Locker LV / Latvijas Pasts pakomāts / Unisend LV / DPD Paku skapis / Omniva LV / Latvijas Pasts nodaļa

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From 1.89 €

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Payment Methods:

Cash payment, Bank transfer, Bank cards on-line, Apple Pay, Google Pay

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Product information

Description

Headphones Koss KSC21 feature a neck-band (behind-the-ear) wearing style with supraaural ear coupling and a 1.2 m cable. They have a frequency response of 50–18,000 Hz, 36 Ohm impedance and 101 dB sensitivity, and use a 3.5 mm connector for compatibility with standard audio devices.

Advantages

These Koss KSC21 headphones offer a wide frequency range suitable for most music and media, medium impedance that pairs well with smartphones and portable players, and relatively high sensitivity for audible output at lower power. The 3.5 mm connector and 1.2 m cable provide broad compatibility and comfortable reach for everyday use.

Suitable for

Listening to music on smartphones and tablets
Use with laptops and portable audio players
Everyday on-the-go or at-home listening where a neck-band design is preferred

Key specifications

Frequency response: 50–18,000 Hz
Impedance: 36 Ohm
Sensitivity: 101 dB
Connector: 3.5 mm
Wearing style: Neck-band (behind-the-ear)
Ear coupling: Supraaural
Cable length: 1.2 m

How to use

Place the neck-band behind your head so the supraaural earpieces rest comfortably on your ears. Insert the 3.5 mm plug into the audio jack of your device. Before playing audio, set the device volume to a low level and increase gradually to a comfortable listening level to avoid sudden loud sound and protect hearing. Compatible devices include smartphones, tablets, laptops and portable audio players with a 3.5 mm output.

Usage recommendations

Use with devices that support a 3.5 mm output and avoid exposing the headphones to moisture, strong impact or extreme temperatures to prolong service life.

Specifications

Ear coupling:: Supraaural
Cable length:: 1.2 m
Wearing style:: Neck-band

All features

Headphones

Headphone frequency:: 50 - 18000
Headphone sensitivity:: 101 dB
Impedance:: 36 Ω
Ear coupling:: Supraaural

Ports & interfaces

3.5 mm connector:: Yes

Performance

Cable length:: 1.2 m
Wearing style:: Neck-band
Recommended usage:: Music
Product type:: Headphones

Microphone

Microphone type:: Not available

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Warehouse	Stock	Delivery to the store	Store Price
BT5	19	Wednesday Best delivery	11.99 € Best price
WH353	24	22.07.2026	14.49 €

11.99 €

Stock: 19

Delivery Date: Wednesday Best delivery

Warehouse: BT5

14.49 €

Stock: 24

Delivery Date: 22.07.2026

Warehouse: WH353

Customer reviews

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Customer questions

FAQ

How much does the Headphones Koss KSC21 cost, and is it available for purchase?

The price is 11.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 43 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on Wednesday at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

What payment options are available?

AiO.lv offers several payment methods: Cash payment, Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

What is the warranty period?

All Koss products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized Koss service centers and through AiO.lv

Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. We will assist with consultation, warranty claim processing, and coordination with certified service centers.

How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: ear coupling, cable length, wearing style, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.

Show all questions

Headphones Koss KSC21

Short description

Product information

Description

Advantages

Suitable for

Key specifications

How to use

Usage recommendations

Specifications

Headphones

Ports & interfaces

Performance

Microphone

Description

Similar products

Product comparison

Customer reviews

Customer questions

How much does the Headphones Koss KSC21 cost, and is it available for purchase?

If I order this product today, when will I receive my order?

What payment options are available?

Can this product be purchased for a company (with VAT)?

What is the warranty period?

Can the product be returned after purchase?

Where should I contact for warranty service?

How can I tell if this product suits my needs?