# Headphones Sennheiser HD 400S

**URL:** https://aio.lv/en/product--sennheiser-508598--1936461
**Data updated:** 2025-12-29 07:56 (EET)
**Category:** Headphones
**Manufacturer:** Sennheiser
**Manufacturer code:** 508598
**EAN:** 4044155245110
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 109.99 €
**Prices and availability valid until:** 2026-07-25 23:59
**Price without VAT (21%):** 90.90 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--sennheiser-508598--1936461

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 08.07.2026 | free |
| Courier delivery to door | 13.07.2026 | 53.99 EUR |

## Summary description

The Sennheiser HD 400S headphones feature a wired design with a comfortable headband, ideal for calls and music. They provide high-quality sound with deep bass and clear treble, ensuring an immersive listening experience. The built-in microphone allows for hands-free calls, making them perfect for everyday use. Lightweight and portable, these headphones are designed for long-lasting comfort.

## Long description

The Sennheiser HD 400S are wired supra-aural (around-ear) headphones designed for everyday use. They feature a comfortable headband, closed-back earcups that reduce background noise, and a detachable single-sided cable with an integrated one-button remote and microphone. The foldable, lightweight construction makes them easy to carry and store while Sennheiser dynamic drivers provide clear treble and strong, well-extended bass for an accurate listening experience.
Advantages
Renowned Sennheiser sound quality delivers a balanced audio signature with dynamic bass and clear highs. The integrated microphone and one-button remote on the cable let you control music playback and handle calls without removing the headphones. Closed-back around-ear design limits external noise for more focused listening, and the lightweight, foldable frame enables compact storage and portability.
Suitable for
Everyday music listening at home or on the go
Hands-free phone calls and remote control of playback
Commuting and travel where compact, foldable headphones are preferred
Key specifications
Impedance: 18 Ω
Connector: 3.5 mm angled plug
Cable length: 1.4 m (detachable single-sided cable, RCS 400)
Weight: 217 g
Sensitivity: 44 dBV/Pa
Ear coupling: Supraaural (around-ear)
Connectivity: Wired
Color: Black
How to use
Connect the detachable RCS 400 cable to the headphones and plug the 3.5 mm angled jack into your device. Use the one-button remote to play/pause music or to answer and end calls; the in-line microphone picks up your voice for hands-free conversations. Fold the headphones along the hinges for compact storage or transport.
Usage recommendations
For best audio performance, use with devices that provide a standard 3.5 mm output. Keep the detachable cable dry and avoid excessive bending near the connector to prolong cable life. Store the headphones folded in a protective case or pouch when not in use.

## Specifications

### Headphones

| Feature | Value |
|---|---|
| Headphone frequency | 18 - 20000 |
| Headphone sensitivity | 120 dB |
| Impedance | 18 Ω |
| Ear coupling | Supraaural |
| Acoustic system | Closed |

### Ports & interfaces

| Feature | Value |
|---|---|
| Connectivity technology | Wired |
| Bluetooth | No |
| Microphone in | Yes |
| USB connectivity | No |
| 3.5 mm connector | Yes |
| 2.5 mm connector | No |
| 6.35 mm connector | No |
| RF connectivity | No |

### Performance

| Feature | Value |
|---|---|
| Cable length | 1.4 m |
| Product colour | Black |
| Total Harmonic Distortion (THD) | 0.5 % |
| Wearing style | Head-band |
| Sound pressure level (max) | 120 dB |
| Recommended usage | Calls/Music |
| Product type | Headphones |

### Other features

| Feature | Value |
|---|---|
| Quantity | 1 |
| Airplane plug | Yes |

### Microphone

| Feature | Value |
|---|---|
| Noise-canceling | No |

### Design

| Feature | Value |
|---|---|
| Foldable | Yes |

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 217 kg |

### Packaging data

| Feature | Value |
|---|---|
| Package weight | 456 g |
| Package depth | 232 mm |
| Package height | 100 mm |
| Package width | 195 mm |
| Package type | Box |

### Packaging content

| Feature | Value |
|---|---|
| Charging stand | No |

## FAQ

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

The price is 109.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 74 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 08.07.2026 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 400S 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

### How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: ear coupling, connectivity technology, cable length, weight, wearing style, product colour, 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.

## Image

https://aio.lv/img/cache/product/1936461/62149519_large.webp