# Cellularline BOLD Wireless Bluetooth Headset Monaural In-ear Black

**URL:** https://aio.lv/en/product--cellular-line-btboldk--12724680
**Data updated:** 2026-10-14 09:45 (EEST)
**Category:** Headphones
**Manufacturer:** Cellular Line
**Manufacturer code:** BTBOLDK
**EAN:** 8018080386220
**Warranty:** 2 Years
**Availability:** Out of stock

## Summary description

Cellularline BOLD monaural wireless Bluetooth headset for calls and music in black. Features in-ear wearing style, built-in microphone, and USB Type-C charging port. Weight: 88 g.

## Long description

The Cellularline BOLD Wireless Bluetooth Headset Monaural In-ear Black is designed for reliable daily communication and media consumption. Featuring a monaural in-ear design, this wireless headset allows you to stay aware of your surroundings while enjoying hands-free calls and listening to music. The sleek black finish and ergonomic build make it suitable for professional environments and on-the-go lifestyles.
Advantages
This headset offers exceptional battery life supporting up to 29 hours of continuous use, making it an ideal companion for busy workdays without the constant need for recharging. The 180-degree rotatable design ensures a flexible and secure fit for either ear, enhancing comfort during extended wear. Integrated physical controls allow for effortless management of volume, music playback, and incoming calls directly from the device. Additionally, the built-in microphone ensures clear voice transmission for professional and personal conversations.
Suitable for
Handling phone calls during work or travel
Listening to music and audio content on the go
Professional multitasking in office or mobile environments
When it may not be suitable
This device may not be suitable for users seeking stereo sound immersion for high-fidelity music production or intense gaming sessions, as it features a single-ear monaural design. It is also not optimized for activities requiring complete noise cancellation across both ears.
Key specifications
Headset type: Monaural
Wearing style: In-ear, intraaural
Connectivity technology: Wireless Bluetooth
Microphone type: Built-in
Charging port: USB Type-C
Product weight: 88 g
Product colour: Black
Recommended usage: Calls and music
How to use
Charge the headset fully using a compatible USB Type-C power source before initial use. Pair the headset with your Bluetooth-enabled smartphone, tablet, or computer by activating pairing mode on your device. Adjust the rotatable ear hook and insert the in-ear tip securely into your ear for a comfortable fit. Use the built-in control buttons to answer or end calls, adjust volume levels, or control your music playback.
What to consider before purchase
Ensure your primary usage aligns with a single-ear monaural headset design.
Verify that your devices support standard wireless Bluetooth connectivity.
Check the charging compatibility, noting that a USB Type-C cable is used and an AC adapter is not included in the package.
For optimal battery performance, avoid exposing the headset to extreme temperatures and recharge the device regularly using a standard USB Type-C power source within the specified power range.

## Specifications

### Other features

| Feature | Value |
|---|---|
| Brand compatibility | Universal |
| USB port type | Micro-USB B |

### Technical details

| Feature | Value |
|---|---|
| Warranty period | 2 year(s) |
| Radio Equipment Directive (RED) | Yes |

### Certificates

| Feature | Value |
|---|---|
| UN number | UN3481 |

### Power

| Feature | Value |
|---|---|
| USB Type-C charging port | Yes |
| USB Type-C required charging power (min) | 2.5 W |
| USB Type-C required charging power (max) | 5 W |

### Logistics data

| Feature | Value |
|---|---|
| Dangerous goods class | Class 9 |

### Packaging content

| Feature | Value |
|---|---|
| Quantity | 1 |
| Cables included | Micro-USB |
| Batteries included | Yes |
| AC adapter included | No |
| Audio adapters included | No |

### Packaging data

| Feature | Value |
|---|---|
| Package weight | 101 g |
| Package height | 165 mm |
| Package depth | 35 mm |
| Package width | 90 mm |

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 0.088 kg |
| Height | 80 mm |
| Depth | 23 mm |
| Width | 0 mm |

### Battery

| Feature | Value |
|---|---|
| Wireless charging | No |
| Battery weight | 5 g |
| Charging source | USB |
| Talk time | 23 h |
| Battery type | Built-in battery |
| Battery operated | Yes |

### Microphone

| Feature | Value |
|---|---|
| Microphone noise-canceling | Yes |
| Microphone type | Built-in |

### Headphones

| Feature | Value |
|---|---|
| Ear coupling | Intraaural |
| Intraaural headphones type | In-ear monitors |

### Ports & interfaces

| Feature | Value |
|---|---|
| RF connectivity | No |
| Bluetooth version | 5.0 |
| Bluetooth | Yes |
| USB connectivity | No |
| 6.35 mm connector | No |
| 3.5 mm connector | No |
| Connectivity technology | Wireless |

### Performance

| Feature | Value |
|---|---|
| Country of origin | China |
| Bone conduction sensor | No |
| Cable length | 0.15 m |
| Foldable | No |
| Control type | Buttons |
| Volume control | No |
| Operating keys | Answer/end call |
| Product colour | Black |
| Headset type | Monaural |
| Recommended usage | Calls/Music |
| Wearing style | In-ear |
| Product type | Headset |

## FAQ

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer. 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 Cellular Line 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 Cellular Line 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: usb type-c charging port, usb type-c required charging power (max), usb type-c required charging power (min), ac adapter included, microphone type, ear coupling, connectivity technology, headset type, recommended usage, product type, 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.

## Image

https://aio.lv/img/cache/product/12724680/70565267_large.webp