# WELL adapter Mairdi MRD-QD172 — RJ9 (Mairdi) to 3.5 mm jack audio reduction

**URL:** https://aio.lv/en/product--well-10000218--5017161
**Data updated:** 2026-03-07 15:10 (EET)
**Category:** Cable Adapters & Converters
**Manufacturer:** WELL
**Manufacturer code:** 10000218
**EAN:** 8594044580050
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 11.49 €
**Prices and availability valid until:** 2026-07-12 23:59
**Price without VAT (21%):** 9.50 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--well-10000218--5017161

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 30.06.2026 | free |
| Pickup points | 03.07.2026 | 1.99 EUR |
| Courier delivery to door | 03.07.2026 | 4.99 EUR |

## Summary description

WELL Mairdi MRD-QD172 is an audio adapter that converts a Mairdi RJ9 connection to a standard 3.5 mm jack. It enables connection between headsets or handsets using RJ9 plugs and devices with a 3.5 mm audio port. Suitable for telephony headsets, voice communication equipment and simple audio routing where a direct RJ9-to-3.5 mm connection is required.

## Long description

WELL Mairdi MRD-QD172 is an audio adapter designed to convert a Mairdi-style RJ9 connection to a standard 3.5 mm audio jack. It allows headsets or handset cords with an RJ9 plug to connect to laptops, desktop computers, mobile devices or other audio equipment fitted with a 3.5 mm socket. The adapter provides a straightforward physical interface for voice communication setups where direct RJ9-to-3.5 mm wiring is needed.
Advantages
The adapter offers a compact and lightweight form factor that makes it suitable for portable and desktop telephony use. Its simple single-purpose design reduces wiring complexity and enables quick, plug-and-play connections between RJ9-equipped headsets and 3.5 mm audio ports. The product supports basic mono or stereo audio signals depending on the connected headset and host device wiring, and it is compatible with common telephone handset connectors and consumer audio jacks.
Suitable for
Telephony headsets with RJ9 connectors
Voice communication on laptops and desktop PCs with 3.5 mm jacks
Adapters for call center or office desk phone integrations
Temporary connections between RJ9 handsets and consumer audio devices
Key specifications
Connector A: RJ9 (Mairdi style) plug for headset/handset cords
Connector B: 3.5 mm audio jack (female) for standard audio input/output
Cable/adapter type: passive electrical adapter for analog audio signal conversion
Compatibility: designed for telephony headsets and devices using RJ9 and 3.5 mm audio interfaces
Form factor: compact inline adapter suitable for desktop and portable use
How to use
Insert the RJ9 plug from the headset or handset cable into the adapter's RJ9 socket and then plug the adapter's 3.5 mm jack into the device's audio port. Verify that the host device recognizes the connected headset and adjust the device's audio input/output settings as needed. For devices with separate microphone and headphone jacks, ensure the adapter is connected to the correct combined TRRS or single audio port according to the headset wiring.
Usage recommendations
Use the adapter for direct analog connections only; it does not perform digital signaling conversion or provide power for active headsets. Handle the connectors gently to avoid bent pins or damaged plugs, and avoid excessive bending of the adapter to prolong service life.

## FAQ

### How much does the WELL Mairdi MRD-QD172 RJ9 to 3.5 mm adapter cost, and is it available for purchase?

The price is 11.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 3 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 30.06.2026 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 WELL 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 WELL 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

## Image

https://aio.lv/img/cache/product/5017161/51273212_large.webp