# Headphones 4smarts 541402

**URL:** https://aio.lv/en/product--4smarts-541402--11419237
**Data updated:** 2025-12-30 21:17 (EET)
**Category:** Headphones
**Manufacturer:** 4smarts
**Manufacturer code:** 541402
**EAN:** 4252011911004
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 44.49 €
**Prices and availability valid until:** 2026-07-17 23:59
**Price without VAT (21%):** 36.77 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--4smarts-541402--11419237

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 10.07.2026 | free |
| Pickup points | 15.07.2026 | 1.99 EUR |
| Courier delivery to door | 15.07.2026 | 4.99 EUR |

## Summary description

The 4smarts 541402 headphones feature a 2.4 GHz processor frequency and a compact design with a cable length of 0.6 m. They come in a sleek black housing and frame, with transparent lenses. Powered by a 200 mAh Lithium Polymer battery, these headphones ensure long-lasting performance. Dimensions are 95 mm in width, 180 mm in depth, and 40 mm in height. Included is a USB Type-A cable for easy charging.

## Long description

The 4smarts 541402 open-ear headphones are sunglasses with integrated bone-conduction style speakers that deliver clear audio while keeping your ears free. The transparent, modern frame houses tuned speakers that direct sound toward the ears so you can listen to music, podcasts or calls without losing awareness of your surroundings. Lightweight construction, polarized lenses and splash-proof casing make these glasses suitable for everyday use, sport and travel.
Advantages
These sunglasses provide open-ear sound that lets ambient noise remain audible while delivering rich audio through precision drivers. Touch sensors on the temples and voice control offer convenient hands-free operation for music, calls and voice assistants. The built-in microphone supports clear voice transmission. A rechargeable 200 mAh Lithium Polymer battery provides several hours of playback with quick-charge capability. The splash-proof, durable materials and polarized lenses combine weather resistance, UV protection and ergonomic comfort.
Suitable for
 Outdoor walking and commuting
 Running, cycling and other sports where situational awareness is needed
 Travel and everyday wear
 Hands-free calls and voice assistant use
Key specifications
 Brand: 4smarts
 Model: 541402
 Category: Headphones (open-ear sunglasses)
 Battery: 200 mAh Lithium Polymer
 Processor frequency: 2.4 GHz
 Cable length (included USB Type-A cable): 0.6 m
 Weight: 0.06 kg
 Housing color: Black; Lenses: Transparent, polarized
 Dimensions (W×D×H): 95 × 180 × 40 mm
 MPN: 541402; EAN: 4252011911004
How to use
Charge the glasses using the included USB Type-A cable until fully charged. Use the touch sensors on the temples to play or pause audio, skip tracks and adjust volume; voice commands can also control playback and calls. Wear the sunglasses as you would normal eyewear so the speakers align near your ears for optimal sound. Use the integrated microphone to take calls hands-free. Do not submerge the device; the splash-proof housing tolerates rain and sweat but is not intended for full immersion.
Usage recommendations
For best results, keep the temples clean and positioned correctly so the speakers aim toward your ears. Charge regularly before long outings and avoid prolonged exposure to heavy rain or full submersion to maintain device longevity.

## Specifications

| Feature | Value |
|---|---|
| Lens colour | Transparent, Black |
| Built-in camera | No |
| Cleaning cloth | Yes |
| Housing colour | Black |
| Frame colour | Black |
| Processor frequency | 2.4 GHz |

### Ports & interfaces

| Feature | Value |
|---|---|
| Bluetooth version | 5.3 |
| Bluetooth | Yes |

### Performance

| Feature | Value |
|---|---|
| Cable length | 0.6 m |

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 0.06 kg |
| Height | 40 mm |
| Width | 95 mm |
| Depth | 180 mm |

### Battery

| Feature | Value |
|---|---|
| Battery technology | Lithium Polymer (LiPo) |
| Battery capacity | 200 mAh |
| Number of battery cells | 2 |

### Packaging data

| Feature | Value |
|---|---|
| Package weight | 170 g |

### Packaging content

| Feature | Value |
|---|---|
| Cables included | USB Type-A |
| Manual | Yes |

## FAQ

### How much does the Headphones 4smarts 541402 cost, and is it available for purchase?

The price is 44.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 6 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 10.07.2026 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 4smarts 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 4smarts 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: cable length, weight, 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/11419237/66181821_large.webp