---
product_id: 72517067
title: "4P4C RJ9 Splitter Training Adapter Telephone Training Adapter Y Splitter+ Two Mute Buttons for Headset for Nortel Meridican, Norstar, Avaya, Ashtra, Mitel, Polycom, Ge Phones etc"
brand: "voicejoy"
price: "€ 40.80"
currency: EUR
in_stock: true
reviews_count: 8
url: https://www.desertcart.fi/products/72517067-4p4c-rj9-splitter-training-adapter-telephone-training-adapter-y-splitter
store_origin: FI
region: Finland
---

# Plug & play setup for instant use Dual mute buttons for seamless control 4P4C RJ9 splitter for versatile headset compatibility 4P4C RJ9 Splitter Training Adapter Telephone Training Adapter Y Splitter+ Two Mute Buttons for Headset for Nortel Meridican, Norstar, Avaya, Ashtra, Mitel, Polycom, Ge Phones etc

**Brand:** voicejoy
**Price:** € 40.80
**Availability:** ✅ In Stock

## Summary

> 🎧 Master your calls with silent precision!

## Quick Answers

- **What is this?** 4P4C RJ9 Splitter Training Adapter Telephone Training Adapter Y Splitter+ Two Mute Buttons for Headset for Nortel Meridican, Norstar, Avaya, Ashtra, Mitel, Polycom, Ge Phones etc by voicejoy
- **How much does it cost?** € 40.80 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fi](https://www.desertcart.fi/products/72517067-4p4c-rj9-splitter-training-adapter-telephone-training-adapter-y-splitter)

## Best For

- voicejoy enthusiasts

## Why This Product

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

## Key Features

- • **Effortless Setup:** No tech hassle—just plug into handset or headset port and start training immediately.
- • **Total Call Control:** Dual mute buttons let you manage conversations discreetly without interrupting the flow.
- • **Compact & Lightweight:** Weighing just 1.44 ounces, it’s easy to carry and integrate into any workspace.
- • **Universal Compatibility:** Works flawlessly with Nortel, Avaya, Mitel, Polycom, and more—perfect for diverse office setups.
- • **Boost Training Efficiency:** Ideal for call centers and telephone marketing teams aiming to sharpen skills in real-time.

## Overview

The VoiceJoy 4P4C RJ9 Splitter Training Adapter features dual mute buttons and a Y splitter design, enabling seamless headset and handset connectivity for major phone brands like Nortel, Avaya, and Polycom. Lightweight and plug-and-play, it’s tailored for call center training environments to enhance communication control and efficiency.

## Description

4P4C RJ9 Splitter Training Adapter Telephone Training Adapter Y Splitter+ Two Mute Buttons for Headset for Nortel Meridican, Norstar, Avaya, Ashtra, Mitel, Polycom, Ge Phones etc

## Features

- Mute button:When you press it, the other end will not hear you. But you can hear him.
- Can plug either into handset port or headset port
- Great use for call center / telephone marketing trainings
- Easy setup, plug and play
- DO NOT WORK FOR CISCO Phones.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | VoiceJoy |
| Brand | VoiceJoy |
| Item Weight | 1.44 ounces |
| Package Dimensions | 5.87 x 3.23 x 1.1 inches |
| Item model number | VoiceJoy-33 |
| Is Discontinued By Manufacturer | No |
| Color | With 2 Mute Switch |
| Number of Items | 1 |
| Manufacturer Part Number | VoiceJoy-33 |

## Product Details

- **Compatible Devices:** Nortel, Norstar, Avaya, Ashtra, Mitel, Polycom, Ge (Not compatible with CISCO)
- **Specific Uses For Product:** Telephone
- **Connector Type:** rj9
- **Color:** With 2 Mute Switch
- **Brand:** VoiceJoy

## Images

![4P4C RJ9 Splitter Training Adapter Telephone Training Adapter Y Splitter+ Two Mute Buttons for Headset for Nortel Meridican, Norstar, Avaya, Ashtra, Mitel, Polycom, Ge Phones etc - Image 1](https://m.media-amazon.com/images/I/51aU2UAY5PL.jpg)
![4P4C RJ9 Splitter Training Adapter Telephone Training Adapter Y Splitter+ Two Mute Buttons for Headset for Nortel Meridican, Norstar, Avaya, Ashtra, Mitel, Polycom, Ge Phones etc - Image 2](https://m.media-amazon.com/images/I/61FznpL1rpL.jpg)
![4P4C RJ9 Splitter Training Adapter Telephone Training Adapter Y Splitter+ Two Mute Buttons for Headset for Nortel Meridican, Norstar, Avaya, Ashtra, Mitel, Polycom, Ge Phones etc - Image 3](https://m.media-amazon.com/images/I/618ir497SfL.jpg)
![4P4C RJ9 Splitter Training Adapter Telephone Training Adapter Y Splitter+ Two Mute Buttons for Headset for Nortel Meridican, Norstar, Avaya, Ashtra, Mitel, Polycom, Ge Phones etc - Image 4](https://m.media-amazon.com/images/I/71sBbpN7MVL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Splitter
*by J***A on July 22, 2023*

Great!

### ⭐⭐⭐⭐ Works great
*by C***O on December 2, 2024*

Bought this for the offices trainings . Great product so people training can hear both sides of the product.

### ⭐⭐⭐ Okay for short term use but sound quality deteriorates over a few weeks
*by C***G on April 29, 2024*

Nice training tool that works well at first. Sound quality degrades and makes the product unusable after a couple of weeks.

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**Shop now:** [https://www.desertcart.fi/products/72517067-4p4c-rj9-splitter-training-adapter-telephone-training-adapter-y-splitter](https://www.desertcart.fi/products/72517067-4p4c-rj9-splitter-training-adapter-telephone-training-adapter-y-splitter)

---

*Product available on Desertcart Finland*
*Store origin: FI*
*Last updated: 2026-02-17*