---
product_id: 8076136
title: "Cel-fi RS1 Cell Phone Signal Booster Wireless Extender for T-Mobile"
brand: "nextivity"
price: "€ 99.90"
currency: EUR
in_stock: true
reviews_count: 8
url: https://www.desertcart.it/products/8076136-cel-fi-rs1-cell-phone-signal-booster-wireless-extender-t
store_origin: IT
region: Italy
---

# Fast installation Compatible with T-Mobile Boosts signal strength Cel-fi RS1 Cell Phone Signal Booster Wireless Extender for T-Mobile

**Brand:** nextivity
**Price:** € 99.90
**Availability:** ✅ In Stock

## Summary

> 📡 Elevate Your Signal, Elevate Your Life!

## Quick Answers

- **What is this?** Cel-fi RS1 Cell Phone Signal Booster Wireless Extender for T-Mobile by nextivity
- **How much does it cost?** € 99.90 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.it](https://www.desertcart.it/products/8076136-cel-fi-rs1-cell-phone-signal-booster-wireless-extender-t)

## Best For

- nextivity enthusiasts

## Why This Product

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

## Key Features

- • **Enhanced Coverage:** Extends your T-Mobile signal to every corner of your home or office.
- • **User-Friendly Setup:** Plug-and-play design for hassle-free installation in minutes.
- • **Compact & Sleek Design:** Modern aesthetics that blend effortlessly into any environment.
- • **License-Free Operation:** Enjoy peace of mind with a system that requires no special licensing.
- • **Uninterrupted Connectivity:** Experience seamless calls and streaming without dropouts.

## Overview

The Cel-fi RS1 Cell Phone Signal Booster is a powerful wireless extender designed specifically for T-Mobile users, ensuring enhanced signal strength and coverage throughout your space. With a user-friendly setup and a sleek design, this device is perfect for professionals seeking reliable connectivity without the hassle of licensing.

## Description

The Cel-Fi Wireless Booster increases signal for the T-Mobile network. It boosts voice calls and 3G/4G data A truly revolutionary product - the Cel-Fi is plug-in-and-play, with no external antenna or cables. 1. Windows Unit receives signal 2. Window Unit sends the signal wirelessly to the Coverage Unit 3. Coverage Unit boosts the signal and transmits it through your home or office -Easy installation - place the window unit near a window, and the coverage unit in the center of your home. No external antennas or cables! -Cover both 3G/4G data and voice calls -Fully wireless -Cover up to 13,000 sq ft with T-Mobile Signal -Ideal for homes and offices -Dramatically improves 3G data speeds and battery life Using Cel-Fi is very easy. Window Unit: -Place the Window Unit near a window where you get signal Coverage Unit: -Place the Coverage Unit in the center of your home or office. *That's It! Plug both units into a power supply and your Cel-Fi is ready to go!

## Features

- Consumer Alert: Most users do not need a license to operate this wireless microphone system. Nevertheless, operating this microphone system without a license is subject to certain restrictions: the system may not cause harmful interference; it must operate at a low power level (not in excess of 50 milliwatts); and it has no protection from interference received from any other device.

## Images

![Cel-fi RS1 Cell Phone Signal Booster Wireless Extender for T-Mobile - Image 1](https://m.media-amazon.com/images/I/91v8tDnlhaL.jpg)
![Cel-fi RS1 Cell Phone Signal Booster Wireless Extender for T-Mobile - Image 2](https://m.media-amazon.com/images/I/910yGD-VsAL.jpg)
![Cel-fi RS1 Cell Phone Signal Booster Wireless Extender for T-Mobile - Image 3](https://m.media-amazon.com/images/I/91m1Bp0-L3L.jpg)
![Cel-fi RS1 Cell Phone Signal Booster Wireless Extender for T-Mobile - Image 4](https://m.media-amazon.com/images/I/91xQMFcZ+sL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Fantastic product and worth every dime.
  

*by R***D on Reviewed in the United States on June 25, 2014*

I bought the Cel-Fi For T-Mobile RS1 Cell Phone Signal Booster Nevtivity 3G, 4G Extender [refurbished] from Sundays Seconds LLC for $ $185. I was trying to avoid getting rid of two Google Nexus 4 cell phones that my wife and I use on the T-Mobile network, for which we both use the $30 a month plan for each phone. Before moving we had great signals, but after our move, the service was terrible. We both had 'no service' messages on our phone for the majority of times, I could only receive a signal when in our master bedroom close to a window.Upon receiving the product, I immediately setup both receiving and transmitting units which took under 5 minutes and was plug and play with no user intervention on my part. Signal strength went from no bars or 1 bar to 4 bars, which on a Nexus 4 is the most bars available. Calls are perfectly clear. I love it!

### ⭐ 1.0 out of 5 stars







  
  
    Forget it.  Better to change carriers.
  

*by A***T on Reviewed in the United States on January 26, 2016*

Total garbage.  Didn't work.  Didn't matter where it was pointed, located or at what height.  Indicated various different error codes every few hours.I threw it away.

### ⭐⭐ 2.0 out of 5 stars







  
  
    MAYDAY MAYDAY,,,No signal
  

*by R***4 on Reviewed in the United States on September 7, 2015*

This device is actually doing a worse job at achieving a decent signal that my phone is alone; at least with my phone I get two bars, with this I only get one. I will have to go to you tube an look for a good video on this item, just to make sure its not user error. No instruction manual came with mine, so you are kind of on your own to figure things out.

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.it/products/8076136-cel-fi-rs1-cell-phone-signal-booster-wireless-extender-t](https://www.desertcart.it/products/8076136-cel-fi-rs1-cell-phone-signal-booster-wireless-extender-t)

---

*Product available on Desertcart Italy*
*Store origin: IT*
*Last updated: 2026-03-13*