---
product_id: 298833334
title: "KJB TRX-20 TELEPHONE RECORDING INTERFACE"
brand: "kjb"
price: "385 Ft"
currency: HUF
in_stock: false
url: https://www.desertcart.hu/products/298833334-kjb-trx-20-telephone-recording-interface
store_origin: HU
region: Hungary
---

# Compact & lightweight design Universal phone interface 3.5mm connection for seamless integration KJB TRX-20 TELEPHONE RECORDING INTERFACE

**Brand:** kjb
**Price:** 385 Ft
**Availability:** ❌ Out of Stock

## Summary

> 📞 Capture every conversation like a pro—because your calls deserve the best.

## Quick Answers

- **What is this?** KJB TRX-20 TELEPHONE RECORDING INTERFACE by kjb
- **How much does it cost?** 385 Ft with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.hu](https://www.desertcart.hu/products/298833334-kjb-trx-20-telephone-recording-interface)

## Best For

- kjb enthusiasts

## Why This Product

- Trusted kjb brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Broad Compatibility:** Works with a wide range of speakerphone systems—check compatibility to stay ahead.
- • **Plug & Play Convenience:** Simple 3.5mm interface ensures quick installation and immediate use.
- • **Sleek, Ultra-Light Design:** Weighing just 49.9g, it fits discreetly into your professional workspace without clutter.
- • **Essential for Professionals:** Ideal for managers and executives who demand reliable call documentation.
- • **Effortless Call Recording Setup:** Easily connect your phone to any compatible recording device and never miss a detail.

## Overview

The KJB TRX-20 Telephone Recording Interface is a compact, lightweight adapter designed to connect your phone system to recording devices via a 3.5mm jack. Compatible with many speakerphone models, it enables seamless call recording (recorder and phone not included). Perfect for professionals needing reliable, high-quality call documentation.

## Description

TRX-20-35B Telephone Recording Jack (3.5mm) TRX20 These WILL NOT WORK with CORDLESS PHONES. The TRX-20-35B Telephone Record Unit (specifically for 3.5mm mic inputs) adapts a recorder to both single or multi-line telephones. Simple and easy to use, this unit connects quickly between your telephone and handset providing crystal clear audio recordings. (The audio quality will be as good as the audio coming through your handset!). A modular connector simply plugs between handset cord and the telephone, and 3.5mm jack plugs into your recorder. When used with a multi-line phone, it will record whichever line you are talking on. 3.5mm microphone input plug on the tape recorder or digital recorder. PLEASE CHECK IF YOUR PHONE SYSTEM IS COMPATIBLE-WITH THIS ADAPTER SOME PHONES ARE NOT COMPATIBLE RECORDING DEVICE IS NEEDED FOR THIS ADAPTER TO WORK RECORDER & PHONE NOT INCLUDED

## Features

- Please check if your phone system is compatible-with this adapter some phones are not compatible recording device is needed for this adapter to work recorder & phone not included

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | kjb |
| Model Number | TRX20.3.5MM |
| Product Dimensions | 5.84 x 4.06 x 9.14 cm; 49.9 g |
| Compatible Models | Speaker |
| Item Weight | 49.9 g |

## Product Details

- **Brand:** kjb
- **Telephone type:** Cordless
- **Power source:** Corded Electric
- **Dialler type:** Single Keypad
- **Item dimensions L x W x H:** 5.8 x 4.1 x 9.1 centimetres
- **Answering system type:** Digital
- **Item weight:** 0.11 Pounds
- **Compatible devices:** Speaker
- **Multiline operation:** Multi-Line Operation
- **Caller identification:** No

## Images

![KJB TRX-20 TELEPHONE RECORDING INTERFACE - Image 1](https://m.media-amazon.com/images/I/51+21qu4UxL.jpg)

## Questions & Answers

**Q: Will this work with a cordless telephone and a headset attached to the telephone?**
A: Hi, I've had a hard time finding a useful headset that will work with the phone and the device at the same time. Every product that I have used has not worked.

**Q: will this work with a nortel phone? it says "please check if your phone system is compatible-with this adapter" but it doesn't list compatible systems**
A: Not sure. We use it on Cisco phone system. Don't know why it wouldn't since it just plugs into regular headset cord.

**Q: I have a Olympus VN-702PC Voice Recorder and a land line phone. Is this the only other piece of equipment I will need to record calls?**
A: Hello, Yes, I suggest you ensure you have a  voice recorder with noice canceling capability.  I used a recorder without that feature and the quality of recording was very difficult.  I highly recommend this little device. Good Luck!

**Q: Does not record**
A: I'm not sure if this is a question or a statement. This item does not, in fact, record.  It must be plugged into the mic port of a recording device.  Hope this helped.

## Frequently Bought Together

- VEC TRX-20 3.5MM Direct Connect Telephone Record Device (ADAPTER ONLY)
- Sony ICD-PX470 Stereo Digital Voice Recorder with Built-in USB Voice Recorder

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**Shop now:** [https://www.desertcart.hu/products/298833334-kjb-trx-20-telephone-recording-interface](https://www.desertcart.hu/products/298833334-kjb-trx-20-telephone-recording-interface)

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*Product available on Desertcart Hungary*
*Store origin: HU*
*Last updated: 2026-02-24*