# Wired Headset HP POLY Blackwire 3325, Microsoft Teams Certified, USB-A, supra-aural, 2.27 m cable, 87 g, black

**URL:** https://aio.lv/en/product--hp-poly-76j21aa--10771380
**Data updated:** 2026-03-31 13:04 (EEST)
**Category:** Headphones
**Manufacturer:** HP POLY
**Manufacturer code:** 76J21AA
**EAN:** 197029480422
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 49.99 €
**Prices and availability valid until:** 2026-07-11 23:59
**Price without VAT (21%):** 41.31 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--hp-poly-76j21aa--10771380

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 01.07.2026 | free |
| Pickup points | 06.07.2026 | 1.99 EUR |
| Courier delivery to door | 06.07.2026 | 4.99 EUR |

## Summary description

Wired USB-A headset HP POLY Blackwire 3325, Microsoft Teams Certified, designed for office and call center use. Supra-aural ear coupling with head-band wearing style, weight 87 g and 2.27 m cable for desktop connectivity. Provides reliable wired audio for voice calls and meetings; suitable for daily teleconferencing and unified communications.

## Long description

Wired USB-A headset HP POLY Blackwire 3325 is a lightweight supra-aural headset designed for office and call center environments. Microsoft Teams Certified, it connects via a 2.27 m USB-A cable to desktop computers and delivers reliable wired audio for voice calls, meetings and unified communications. The head-band wearing style and 87 g weight prioritise all-day comfort while maintaining a compact footprint and straightforward connectivity.
Advantages
The Blackwire 3325 combines Poly signature audio for clear voice reproduction with a simple wired connection that avoids pairing or battery management. Its supra-aural ear coupling and padded headband offer a balance of comfort and stability during extended use. Certification for Microsoft Teams ensures consistent call control and compatibility with Teams meeting features when used with supported clients.
Suitable for
 Office desktops and hot-desking workstations
 Call centers and customer support teams
 Remote and hybrid workers who use Microsoft Teams
 Audio-only conference calls and unified communications
Key specifications
 Connectivity: Wired USB-A
 Ear coupling: Supra-aural (on-ear)
 Wearing style: Head-band
 Cable length: 2.27 m
 Weight: 87 g
 Colour: Black
 Certification: Microsoft Teams Certified
How to use
Plug the USB-A connector into an available USB port on your desktop or laptop. Position the headband on your head and adjust for a comfortable fit so the supra-aural ear pads sit lightly on the ears. Use the computer’s audio settings or Microsoft Teams client to select the Blackwire 3325 as the input and output device. Adjust system volume and in-call controls from the operating system or conferencing application as needed.
Usage recommendations
For optimal speech clarity, place the headset on with the microphone aligned to the mouth and test audio levels before important calls. Avoid sharp bends in the cable and store the headset on a flat surface or hanger to preserve padding and headband shape.

## Specifications

### Headphones

| Feature | Value |
|---|---|
| Headphone sensitivity | 90 dB |
| Impedance | 32 Ω |
| Driver unit | 28 mm |
| Ear coupling | Supraaural |
| Driver type | Dynamic |

### Ports & interfaces

| Feature | Value |
|---|---|
| Connectivity technology | Wired |
| USB connectivity | Yes |
| USB connector | USB Type-A |
| 3.5 mm connector | Yes |
| Cable colour | Red |

### Performance

| Feature | Value |
|---|---|
| Cable length | 2.27 m |
| Product colour | Black |
| Volume control | Button |
| Headset type | Binaural |
| Wearing style | Head-band |
| Recommended usage | Office/Call center |
| Product type | Headset |
| Control unit type | In-line control unit |
| Hearing protection technologies | SoundGuard DIGITAL |

### Technical details

| Feature | Value |
|---|---|
| Warranty period | 2 year(s) |

### Other features

| Feature | Value |
|---|---|
| Signal-to-Noise Ratio (SNR) | 118 dB |

### Microphone

| Feature | Value |
|---|---|
| Microphone frequency | 100 - 10000 |
| Microphone sensitivity | -38 dB |

### Design

| Feature | Value |
|---|---|
| Compatible products | PC, Mobile |

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 0.087 kg |
| Height | 178 mm |
| Width | 155 mm |
| Depth | 32 mm |

### Packaging data

| Feature | Value |
|---|---|
| Package weight | 250 g |
| Package depth | 56 mm |
| Package height | 207 mm |
| Package width | 185 mm |

### System requirements

| Feature | Value |
|---|---|
| Windows operating systems supported | Windows 10 |
| Mac operating systems supported | MacOS |

### Packaging content

| Feature | Value |
|---|---|
| Ear pad material | Leatherette |

## FAQ

### How much does the HP POLY Blackwire 3325 wired USB-A headset cost, and is it available for purchase?

The price is 49.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 21 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 01.07.2026 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 HP POLY 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 HP POLY 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 HP POLY Blackwire 3325 wired USB-A headset?

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/10771380/62301454_large.webp