---
product_id: 378141472
title: "RFAdapter RJ11 Coupler, 2 Pack Telephone Phone Line Connector Coupler RJ11 6P4C Inline Keystone Jack Female to Female Straight Telephone Cable Cord Extension White"
brand: "rfadapter"
price: "VT4061"
currency: VUV
in_stock: true
category: "Rf Adapter"
url: https://www.desertcart.vu/products/378141472-rfadapter-rj11-coupler-2-pack-telephone-phone-line-connector-coupler
store_origin: VU
region: Vanuatu
---

# Low signal attenuation Seamless RJ11 connection Compact & durable design RFAdapter RJ11 Coupler, 2 Pack Telephone Phone Line Connector Coupler RJ11 6P4C Inline Keystone Jack Female to Female Straight Telephone Cable Cord Extension White

**Brand:** rfadapter
**Price:** VT4061
**Availability:** ✅ In Stock

## Summary

> 🔌 Connect smarter, sound clearer — never miss a call again!

## Quick Answers

- **What is this?** RFAdapter RJ11 Coupler, 2 Pack Telephone Phone Line Connector Coupler RJ11 6P4C Inline Keystone Jack Female to Female Straight Telephone Cable Cord Extension White by rfadapter
- **How much does it cost?** VT4061 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/378141472-rfadapter-rj11-coupler-2-pack-telephone-phone-line-connector-coupler)

## Best For

- rfadapter enthusiasts

## Why This Product

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

## Key Features

- • **Crystal Clear Calls:** Experience high-fidelity sound with zero static or distortion—perfect for professional calls.
- • **Space-Saving Design:** Compact and sleek inline coupler that fits discreetly in any home or office setup.
- • **Universal Compatibility:** Works flawlessly with all RJ11 devices including landlines, fax machines, and answering systems.
- • **Effortless Line Extension:** Connect and extend your telephone lines instantly with a reliable RJ11 coupler.
- • **Trusted Durability & Support:** Built to last with strong anti-interference properties and backed by a 12-month worry-free warranty.

## Overview

This RJ11 Coupler 2-pack offers a compact, durable solution to extend telephone lines with minimal signal loss. Designed for universal RJ11 compatibility, it ensures crystal-clear voice transmission with strong anti-interference capabilities. Ideal for home or office, it’s easy to install and backed by a 12-month warranty for confident use.

## Description

RJ11 inline coupler is used to connect and extend two existing telephone lines with R11 telephone connector at both ends through telephone through box.Compress all the spare space, accurate signal transmission, small and exquisite, compact and durable. Easy to install and no static or distortion of voices.It has high fidelity sound quality, exquisite workmanship, strong anti-interference ability and low signal attenuationcoefficient. Provides good solid connection without signal loss.Universally compatible with all RJ11 devices such as landline phones, fax or answering machines etc. Wide range of use: family, study, living room, bedroom, office, business meeting, education, entertainment, etc.We offer worry-free warranty and friendly customer service within 12 months for your confident purchase. If you are not satisfied with any product, please don’t hesitate to contact us, we will serve you our best.

## Features

- RJ11 inline coupler is used to connect and extend two existing telephone lines with R11 telephone connector at both ends through telephone through box.
- Compress all the spare space, accurate signal transmission, small and exquisite, compact and durable. Easy to install and no static or distortion of voices.
- It has high fidelity sound quality, exquisite workmanship, strong anti-interference ability and low signal attenuationcoefficient. Provides good solid connection without signal loss.
- Universally compatible with all RJ11 devices such as landline phones, fax or answering machines etc. Wide range of use: family, study, living room, bedroom, office, business meeting, education, entertainment, etc.
- We offer worry-free warranty and friendly customer service within 12 months for your confident purchase. If you are not satisfied with any product, please don’t hesitate to contact us, we will serve you our best.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B08L67FQ8T |
| Best Sellers Rank | #56,610 in Electronics ( See Top 100 in Electronics ) #83 in Telephone Cables |
| Brand Name | RFAdapter |
| Cable Type | Telephone |
| Color | White |
| Compatible Devices | Telephone |
| Compatible Phone Models | All Smartphone |
| Connectivity Technology | RJ11 |
| Connector Gender | Female-to-Female |
| Connector Type | RJ11 |
| Customer Package Type | FFP |
| Customer Reviews | 4.6 4.6 out of 5 stars (655) |
| Ethernet Cable Category | Cat 5 |
| Indoor Outdoor Usage | Indoor |
| Item Shape | Round |
| Manufacturer | RFAdapter |
| Model | RFAdapter Telephone Wires |
| Number of Items | 2 |
| Number of Pins | 6 |
| Other Special Features of the Product | Compact |
| Part Number | ULRF0A0135A-2-CA |
| Recommended Uses For Product | telephone line extension or combination |
| UPC | 744306795542 |
| Unit Count | 2 Count |

## Product Details

- **Brand:** RFAdapter
- **Cable type:** Telephone
- **Compatible devices:** Telephone
- **Connector type:** RJ11
- **Special features:** Compact

## Images

![RFAdapter RJ11 Coupler, 2 Pack Telephone Phone Line Connector Coupler RJ11 6P4C Inline Keystone Jack Female to Female Straight Telephone Cable Cord Extension White - Image 1](https://m.media-amazon.com/images/I/41q8B-I7+rL.jpg)

## Available Options

This product comes in different **Item Package Quantity** options.

## Questions & Answers

**Q: I tested the polarity and the coupler changes the polarity of the lines compared to when polarity checked at outlet before coupler used. PIN layout?**
A: Yes, many of these couplers are simple, straight thru pin 2-5 to 2-5 and do not properly crossover/reverse the pins to maintain the continuity on the same wires throughout both cables.

If using this type of straight thru coupler, you'll need to either use two of them (plus an extra "bridge" cable) or wire up your own custom crossover cable to correct the pin-out issue.

**Q: Does this work for two-line phones?**
A: If there are two lines connected to the phone that you want to extend with "extension chords" (connect to longer phone lines), you would need on coupler for each line.

## Frequently Bought Together

- RJ11 Coupler, 2 Pack Telephone Phone Line Connector Coupler RJ11 6P4C Inline Keystone Jack Female to Female Straight Telephone Cable Cord Extension Adapter White
- Ubramac 15 Feet Long Telephone Extension Cord Phone Cable Line Wire, with Standard RJ11 Plug and 1 in-Line Couplers and 15 Cable Clip Holders-White

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**Shop now:** [https://www.desertcart.vu/products/378141472-rfadapter-rj11-coupler-2-pack-telephone-phone-line-connector-coupler](https://www.desertcart.vu/products/378141472-rfadapter-rj11-coupler-2-pack-telephone-phone-line-connector-coupler)

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*Product available on Desertcart Vanuatu*
*Store origin: VU*
*Last updated: 2026-05-17*