# Headphones Intenso O400HA

**URL:** https://aio.lv/en/product--intenso-3740400--11207789
**Data updated:** 2025-12-30 18:32 (EET)
**Category:** Headphones
**Manufacturer:** INTENSO
**Manufacturer code:** 3740400
**EAN:** 4034303035458
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 47.49 €
**Prices and availability valid until:** 2026-07-13 23:59
**Price without VAT (21%):** 39.25 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--intenso-3740400--11207789

## 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 | 1.99 EUR |
| Courier delivery to door | 20.07.2026 | 4.99 EUR |

## Summary description

The Intenso O400HA headphones offer wireless connectivity via Bluetooth, making them perfect for everyday use and music enjoyment. With a frequency range of 20 - 20000 Hz, they deliver clear sound quality. The wireless range extends up to 15 meters, allowing for freedom of movement. Weighing only 248 grams, these lightweight headphones are comfortable to wear for extended periods. The included 1.5 m cable provides additional flexibility for wired use when needed. Available in sleek black.

## Long description

The Intenso O400HA over-ear headphones provide flexible listening options and clear sound for everyday use. They offer multiple modes — music mode for balanced reproduction, Hybrid Active Noise Cancelling (ANC) that reduces ambient noise by up to 35 dB, transparency mode to let important external sounds through, and passive wired mode via the 3.5 mm jack for use without battery. The headphones feature 40 mm drivers, Bluetooth 5.3 wireless connectivity with up to 15 m range, and a foldable ergonomic design for comfortable, space-saving transport. The 600 mAh battery supports up to 75 hours of playback and fast charging gives about 6 hours of use after a 15-minute charge. In the box: headphones, USB-C to USB-C cable, and a 1.5 m 3.5 mm audio cable. Available in black, white, pink, and blue.
Advantages
Multiple listening modes (music, Hybrid ANC, transparency, passive wired) adapt the Intenso O400HA to different environments and preferences. Long battery life up to 75 hours combined with fast-charge capability ensures extended use and quick top-ups when needed. Bluetooth 5.3 provides a stable wireless connection up to 15 meters, while the 3.5 mm cable and foldable construction add wired compatibility and portability. Lightweight circumaural design with 40 mm drivers delivers clear and powerful sound across music styles.
Suitable for
Daily music listening at home or on the go
Commuting and travel where ANC helps reduce ambient noise
Remote work or study requiring focus with reduced distractions
Wired listening when battery is depleted or for low-latency use
Key specifications
Driver size: 40 mm
Frequency response: 20 – 20,000 Hz
Connectivity: Bluetooth 5.3, 3.5 mm audio jack
Wireless range: up to 15 m
Battery: 600 mAh, up to 75 hours playback
Fast charge: approx. 6 hours playback after 15 minutes charging
Charging port: USB-C
Cable length (included): 1.5 m (3.5 mm cable)
Weight: 0.248 kg
Ear coupling / wearing style: circumaural / handheld
How to use
Charge the headphones via the USB-C port until fully charged (about 2 hours). Select the desired listening mode using the device controls: music mode for standard playback, ANC to reduce background noise by up to 35 dB, transparency mode to hear surroundings, or connect the 3.5 mm cable for passive wired listening without battery. Pair the headphones with a Bluetooth 5.3 source within 15 meters for wireless use, or connect via the included audio cable when preferred.
Usage recommendations
For optimal ANC performance, ensure ear cups form a good seal around the ears and update device firmware if updates are available. Use transparency mode when you need situational awareness, and switch to wired mode for critical low-latency applications.

## Specifications

### Headphones

| Feature | Value |
|---|---|
| Headphone frequency | 20 - 20000 |
| Impedance | 32 Ω |
| Ear coupling | Circumaural |
| Noise canceling type | Active |
| Diaphragm diameter | 40 mm |
| Transparency mode | Yes |

### Ports & interfaces

| Feature | Value |
|---|---|
| Connectivity technology | Wireless |
| Bluetooth version | 5.3 |
| Wireless range | 15 m |
| Bluetooth | Yes |
| Bluetooth profiles | SBC |
| 3.5 mm connector | Yes |

### Performance

| Feature | Value |
|---|---|
| Cable length | 1.5 m |
| Product colour | Black |
| Volume control | Touch |
| Headset type | Binaural |
| Wearing style | Handheld |
| Recommended usage | Music/Everyday |
| Product type | Headphones |
| Control unit type | On-ear control unit |

### Microphone

| Feature | Value |
|---|---|
| Microphone type | Not available |

### Design

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

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 0.248 kg |
| Height | 195 mm |
| Width | 165 mm |
| Depth | 75 mm |

### Power

| Feature | Value |
|---|---|
| USB Type-C charging port | Yes |

### Battery

| Feature | Value |
|---|---|
| Battery technology | Lithium Polymer (LiPo) |
| Battery type | Built-in battery |
| Battery capacity | 600 mAh |
| Fast charging time | 15 min |
| Fast charging | Yes |
| Battery operated | Yes |

### Packaging content

| Feature | Value |
|---|---|
| Cables included | Audio (3.5mm), USB Type-C |

### Logistics data

| Feature | Value |
|---|---|
| Products per master (outer) case | 6 pc(s) |

### Supplier features

| Feature | Value |
|---|---|
| Charging time | 2 min |
| Battery life | 75 min |

## FAQ

### How much does the Headphones Intenso O400HA cost, and is it available for purchase?

The price is 47.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 25 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: 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 INTENSO 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 INTENSO 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, product colour, 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.

### Where can I download the instructions for Headphones Intenso O400HA?

You can download the instructions in PDF format from the “Instructions” section on the product description page. The file contains complete information about installation, setup, and usage.

## Image

https://aio.lv/img/cache/product/11207789/62209272_large.webp