# Headphone DELTACO HL-21

**URL:** https://aio.lv/en/product--streetz-hl-21--4104555
**Data updated:** 2025-12-29 15:37 (EET)
**Category:** Headphones
**Manufacturer:** Streetz
**Manufacturer code:** HL-21
**EAN:** 733304803064
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 6.99 €
**Prices and availability valid until:** 2026-07-31 23:59
**Price without VAT (21%):** 5.78 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--streetz-hl-21--4104555

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 21.07.2026 | free |
| Pickup points | 24.07.2026 | 1.89 EUR |
| Courier delivery to door | 24.07.2026 | 4.99 EUR |

## Summary description

The DELTACO HL-21 headphones feature a sleek black design and come with a built-in microphone for hands-free calls. With comfortable ear pads and adjustable headband, they provide a snug fit for extended listening sessions. The headphones are compatible with various devices, making them versatile for music, gaming, or calls. Enjoy clear sound quality and convenience with the DELTACO HL-21.

## Long description

DELTACO HL-21 stereo headset in black with 30 mm drivers and a built-in microphone. The headset connects via a 3.5 mm 4‑pole mini jack and has an approximately 2 m cable. Specifications include 32 Ω impedance, 108 dB SPL sensitivity and a frequency response of 20 Hz–20 kHz for the headphones; the microphone has an impedance of 2.2 Ω and a frequency response of 30 Hz–16 kHz.
Advantages
The DELTACO HL-21 provides clear stereo sound from 30 mm drivers, a long cable for flexible use and an integrated microphone for hands-free communication. Lightweight construction with adjustable headband and soft ear pads supports extended wear.
Suitable for
Listening to music on phones, tablets and laptops
Voice and video calls
Casual gaming
Online meetings and remote work
Key specifications
Driver size: 30 mm
Impedance (headphones): 32 Ω
Sensitivity (SPL): 108 dB
Frequency response (headphones): 20 Hz–20 kHz
Microphone impedance: 2.2 Ω
Microphone frequency response: 30 Hz–16 kHz
Connector: 3.5 mm mini jack (4‑pole)
Cable length: approx. 2 m
How to use
Plug the 3.5 mm 4‑pole connector into a compatible device socket. Adjust the headband for a comfortable fit and position the ear cups over your ears. For voice calls, ensure the microphone is positioned close to your mouth. Use the connected device’s audio settings to adjust volume and input/output selection.
Usage recommendations
Use with devices that support a 4‑pole 3.5 mm connector for both audio and microphone functionality; if your device has separate headphone and microphone jacks or requires an adapter, use an appropriate splitter or adapter.

## FAQ

### How much does the Headphone DELTACO HL-21 cost, and is it available for purchase?

The price is 6.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 866 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 21.07.2026 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: 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 Streetz 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 Streetz 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. More information about warranty service: https://aio.lv/en/warranty

## Image

https://aio.lv/img/cache/product/4104555/10438923_large.webp