# Headphones Sennheiser HD 400U — wired on-ear headphones, single-ended USB-C connection

**URL:** https://aio.lv/en/product--sennheiser-4260752334600--12056798
**Data updated:** 2026-03-12 19:40 (EET)
**Category:** Headphones
**Manufacturer:** Sennheiser
**Manufacturer code:** 4260752334600
**EAN:** 4260752334600
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 83.49 €
**Prices and availability valid until:** 2026-08-01 23:59
**Price without VAT (21%):** 69.00 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--sennheiser-4260752334600--12056798

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 15.07.2026 | free |
| Pickup points | 20.07.2026 | 1.89 EUR |
| Courier delivery to door | 20.07.2026 | 4.99 EUR |

## Summary description

Sennheiser HD 400U are wired on-ear headphones designed for personal audio listening and communication. They feature a single-ended USB‑C connection for digital audio playback and simple plug-and-play use with compatible devices. Suitable for music, podcasts and online calls where compact on-ear design and direct USB‑C connectivity are required.

## Long description

Sennheiser HD 400U are wired on-ear headphones designed for personal audio listening and communication. They use a single-ended USB-C connection to receive digital audio directly from compatible smartphones, tablets and computers, providing a compact, plug-and-play solution without the need for a separate analog adapter or headphone jack. The on-ear form factor keeps the design lightweight and portable while offering focused sound for music, podcasts and online calls.
Advantages
The single-ended USB-C connection delivers a direct digital audio path for simplified setup and consistent playback across devices that support USB audio. The on-ear cushions and adjustable headband combine portability with comfortable short- to medium-duration wear. Wired connectivity eliminates concerns about battery life and wireless pairing, and the closed-back on-ear shells help reduce ambient noise for clearer listening in busy environments.
Suitable for
Listening to music on USB‑C smartphones and tablets
Podcast listening and spoken-word content
Online meetings, calls and voice communication
Portable use when a compact on-ear design is preferred
Key specifications
Form factor: on-ear headphones
Connection: single-ended USB-C (digital audio)
Wired connection type: direct USB-C plug
Usage: personal audio listening and communication
Design focus: compact, lightweight and portable
How to use
Connect the USB-C plug to a compatible device that supports USB audio output. The headphones are intended for plug-and-play use; once connected the source device should recognize them as an audio output device. Adjust the headband and on-ear cushions for a comfortable fit. Control playback and volume through the connected device; no onboard battery charging or wireless pairing is required.
Usage recommendations
For best results, use the headphones with devices that explicitly support USB audio over USB-C. Keep the USB-C connector free of dust and debris and avoid excessive cable stress at the connector. For extended listening sessions, periodically adjust fit and allow short breaks to maintain comfort.

## FAQ

### How much does the Headphones Sennheiser HD 400U cost, and is it available for purchase?

The price is 83.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 8 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 15.07.2026 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, Installment. All transactions are 100% secure and encrypted.

### Can Headphones Sennheiser HD 400U be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### 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 Sennheiser 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 Sennheiser 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/12056798/67542785_large.webp