# 4G LTE & Calls - 250m2 (Three 3) Mobile Phone Signal Booster

##### **Enhanced 4G LTE Signal**

  

Experience outstanding mobile connectivity with our signal booster designed to enhance 4G LTE coverage. Operating on both 900MHz and 1800MHz frequencies, it substantially boosts your mobile calls, texts, and data speeds, ensuring seamless communication and uninterrupted service.  
![4G LTE Mobile Signal Booster UK Networks EE Vodafone O2 Indoor Coverage Improve Signal Feature](https://cdn.shopify.com/s/files/1/0488/4129/3976/files/Signal-Booster-Feature1-1.png?v=1780277092)

##### **Wide Coverage Area**

  

Offering an impressive indoor coverage of up to 250 square meters, this mobile signal booster is perfect for various environments such as homes, cafes, restaurants, and clubs. Say goodbye to dead zones and hello to consistent signal strength everywhere you need it.  
![4G LTE Mobile Signal Booster UK Networks EE Vodafone O2 Indoor Coverage Improve Signal Feature](https://cdn.shopify.com/s/files/1/0488/4129/3976/files/Signal-Booster-Feature2.png?v=1780223075)

##### **Multiple Device Compatibility**

  

Our mobile phone signal booster supports up to 25 users simultaneously, making it ideal for families or small businesses. Each individual can connect effortlessly without sacrificing performance, ensuring everyone stays connected and productive.  
![4G LTE Mobile Signal Booster UK Networks EE Vodafone O2 Indoor Coverage Improve Signal Feature](https://cdn.shopify.com/s/files/1/0488/4129/3976/files/Signal-Booster-Feature3.png?v=1780223075)

##### **Complete Installation Kit**

  

The booster comes as a complete kit, including all necessary components for easy setup. You'll find everything from outdoor and indoor antennas to a power adapter, making installation a breeze and providing immediate results without hassle.  
![4G LTE Mobile Signal Booster UK Networks EE Vodafone O2 Indoor Coverage Improve Signal Feature](https://cdn.shopify.com/s/files/1/0488/4129/3976/files/Signal-Booster-Feature4.png?v=1780223075)

##### **User-Friendly Maintenance**

  

Designed for simplicity, our mobile signal booster requires minimal maintenance. With its straightforward installation process and reliable performance, enjoy high-quality mobile services with ease and confidence, keeping your devices always connected.  
![4G LTE Mobile Signal Booster UK Networks EE Vodafone O2 Indoor Coverage Improve Signal Feature](https://cdn.shopify.com/s/files/1/0488/4129/3976/files/Signal-Booster-Feature5.png?v=1780223075)

##### **Boosts All Networks**

  

This dual-band signal booster is compatible with a range of mobile networks in Italy, including TIM, Vodafone, and Wind. Enjoy enhanced voice calls and texts across different carrier bands without needing multiple boosters, all while enjoying superior reception.  
![4G LTE Mobile Signal Booster UK Networks EE Vodafone O2 Indoor Coverage Improve Signal Feature](https://cdn.shopify.com/s/files/1/0488/4129/3976/files/Signal-Booster-Feature6.png?v=1780223075)

## **3 Steps to Full Bars**

## 1\. Place the Outdoor Antenna

Mount the antenna where you get the best signal.  
![4G LTE Mobile Signal Booster UK Networks EE Vodafone O2 Indoor Coverage Improve Signal Install](https://cdn.shopify.com/s/files/1/0488/4129/3976/files/Install-1.gif?v=1780223819)  
  

## 2\. Connect the Booster Inside

Plug in the booster and connect to the antenna.  
![4G LTE Mobile Signal Booster UK Networks EE Vodafone O2 Indoor Coverage Improve Signal Install](https://cdn.shopify.com/s/files/1/0488/4129/3976/files/Install-2.gif?v=1780223819)  
  

## 3\. Enjoy Full Bars Everywhere

Clear calls, fast data, and no more dead zones.  
![4G LTE Mobile Signal Booster UK Networks EE Vodafone O2 Indoor Coverage Improve Signal Install](https://cdn.shopify.com/s/files/1/0488/4129/3976/files/Install-3.gif?v=1780223819)  
  

## 4G LTE booster mobile phone signal booster signal enhancement Three mobile signal booster indoor signal coverage voice call improvement mobile network compatibility dual band amplifier

It boost **4G LTE and Calls** signal on 900MHz, 1800MHz frequencies, the frequencies used in **Italy** used by mobile networks to deliver their mobile services: 2G (also known as GSM) and 4G. It work on both 900Mhz (Band 8) & 1800Mhz (Band 3) frequencies for improving Three (3) mobile carrier **Voice Calls, Text and 4G LTE** signal. It also boost TIM, Vodafone and Wind etc ALL mobile carrier networks **Voice Calls and Texts**. If your phones support 4G Calling (also called Voice over LTE or VoLTE) and your area 4G Calling is available, with the booster you can make clearer voice calls using 4G network. If you have a 4G ready phone, but you’re **not in a 4G area**, you’ll **still be able to use voice calls and text**. It is the best suitable for medium size, boost indoor signal areas up to **250 m2**, perfect for home, cafes, restaurants, pubs, clubs and more.

This system is compatible with all GSM mobile phone networks, will provide coverage on both 900MHz, 1800MHz frequency **simultaneously**. It's Dual Band booster and is an **ESSENTIAL** if many people in the same household are on different mobile phone networks!

* * *

**Clear Voice**  
No Miss Important Calls  
**Wow 2G/4G Calls**  
Eliminates Dropped Calls

**Send/Receive SMS**  
SMS Text Messages Quickly  
**Consistent Connection**  
Reliable 4G/LTE Data

**Signal Wider Coverage**  
Reception Up to 250 sq.m.  
**4G/LTE Internet**  
Faster Uploads & Downloads

* * *

### Upgrade External Cables

If our standard package 10 meter external cable length is not enough to cover your area you have an upgrade option.  
![4G LTE booster mobile phone signal booster signal enhancement Three mobile signal booster indoor signal coverage voice call improvement mobile network compatibility dual band amplifier cables](https://cdn.shopifycdn.net/s/files/1/0488/4129/3976/files/ProductPageCable.webp?v=1600639912)

* * *

### Upgrade External Aerial

Higher Gain Yagi Antenna - For better performance it's a must if indoor your phone with 1/2 signal bars. Or get this upgrade if outdoor best signal strength in the following range:  
2G (GSM) -76 to -90 dBm  
3G (UMTS) -80 to -94 dBm  
4G (LTE) -97 to -105 dBm  
How shown dBm reading on phone, can refer [Quick Start Guide](https://www.ukmobilebooster.com/pages/quick_start_guide)  
![4G LTE booster mobile phone signal booster signal enhancement Three mobile signal booster indoor signal coverage voice call improvement mobile network compatibility dual band amplifier higher gain yagi antenna](https://cdn.shopifycdn.net/s/files/1/0488/4129/3976/files/ProductPageHigherGainYagiAntenna.webp?v=1600640184)

* * *

### Upgrade Protector

Lightning Surge Protector - Designed to Protect your equipment from high amperage surges due to lightning strikes on aerials or masts in close proximity to the device. This unit is rated for 18KA of current surge and is very simple to install on any device.  
![4G LTE booster mobile phone signal booster signal enhancement Three mobile signal booster indoor signal coverage voice call improvement mobile network compatibility dual band amplifier surge protector](https://cdn.shopifycdn.net/s/files/1/0488/4129/3976/files/ProductPageSurgeProtector.webp?v=1600640184)

* * *

### Specification

Application & Bands

\[4G/LTE & Calls\] (Band 8, 3)

Country

Italy

**Boost All On**

TIM (2G)  
Vodafone (2G)  
Wind (2G)  
3 (4G & 2G)  
Coop voce (2G)  
DIGI Mobil (2G)  
Fastweb (2G)  
Lycamobile (2G)  
PosteMobile (2G)  
Ringo Mobile (2G)  
Tiscali (2G)  
Uno (2G)

Users Supporting

25 Simultaneously

Band

Dual Band 8 & 3

Frequency

900 & 1800MHz

Gain(dB)

Uplink Gp≥50; Downlink Gp≥55

Up-link

890~915 MHz; 1710~1785 MHz

Down-link

935~960 MHz; 1805~1880 MHz

Export Power(Po)

\-70~-40 dBm/FA(1.23MHz)

Power Adapter

Input: AC 100V~240V 50/60Hz;  
Output: DC 5V

Kit Includes

1 x Booster  
1 x Outdoor Antenna  
1 x Indoor Antenna  
1 x EU Power Adapter  
1 x 10 Meters Outdoor Cable

**Warming Tips:**  
-   Band Confirmation: This booster can boost signals on Band 8, Band 3, please check the band of your devices firstly.
-   For iPhone: Dial \*3001#12345#\* → Press call button → Click 'Serving Cell Info' → Check 'Freq Band Indicator'.
-   For Android: Download 'LTE Discovery' APP → Click ‘SIGNALS’ → Check 'EARFCN'. More refer to [Quick Start Guide](https://www.ukmobilebooster.com/pages/quick_start_guide) .
-   External Signal Needed: The signal booster can only amplify signal but can't create signal. If there is no signal outside, it won't work, please make sure you get 1-2 bars signal outside.

### Custom your solution

#### **Expandable coverage by adding indoor antenna if the outside signal is strong.**

  

![UK Mobile Booster Expand Cell Coverage with 3 Indoor Antennas](https://cdn.shopifycdn.net/s/files/1/0488/4129/3976/files/Expand-Cell-Coverage-with-3-Indoor-Antenna.png?v=1700361963)

  

### **How It Works**

  

![how 4G LTE booster mobile phone signal booster signal enhancement Three mobile signal booster indoor signal coverage voice call improvement mobile network compatibility dual band amplifier work for home office](https://cdn.shopifycdn.net/s/files/1/0488/4129/3976/files/ProductPageHIWhomeoffice-2.webp?v=1650634397)

#### 1

**Receives signal**  
The powerful antenna reaches out to access a voice and 3G, 4G, and LTE data signal, and delivers it to the booster  

#### 2

**Boosts signal**  
The booster receives the signal, amplifies it, and serves as a relay between your phone and the nearest cell tower.  

#### 3

**Broadcasts signal**  
Your devices get increased cell reception, and calls and data are fed through the booster back to the network.  
  

  

#### **Get stronger signal**

  

![how 4G LTE booster mobile phone signal booster signal enhancement Three mobile signal booster indoor signal coverage voice call improvement mobile network compatibility dual band amplifier work for home office](https://cdn.shopifycdn.net/s/files/1/0488/4129/3976/files/ProductPagenormalcoverage-2.webp?v=1650634397)

#### Normal Cell Coverage

Dropped calls and slow data are generally caused by three things: distance from a cell tower, building materials in your home or office, or obstruction from tall objects such as trees, topography, and buildings.

![how 4G LTE booster mobile phone signal booster signal enhancement Three mobile signal booster indoor signal coverage voice call improvement mobile network compatibility dual band amplifier work for home office](https://cdn.shopifycdn.net/s/files/1/0488/4129/3976/files/ProductPageboostedcoverage-2.webp?v=1650634397)

#### Signal Coverage with our booster

Signal boosters increase cell signal by collecting signals with a powerful antenna, delivering those signals to the booster, amplifying the cell signals so your devices receive them, and delivering your device's boosted signals back to the cell tower.

#### **Installation**

1.  Connect the indoor antenna to the MS port.
2.  Connect the outdoor antenna to the BS Port.
3.  Install the outdoor antenna and keep a minimum vertical distance of 10 meters from the indoor antenna.
4.  Point the outdoor antenna to the direction where you know there is possibly a higher signal strength from the base station.
5.  Power on the booster and check the signal strength.
6.  Adjust the outdoor antenna until you get the best signal strength.

**IMPORTANT NOTE**:  
DO NOT POWER ON THE DEVICE UNTIL YOU HAVE COMPLETED THIS SETUP.

Read more about [User Manual Documentation.](https://drive.google.com/file/d/1Uch5legGJsKTzLO9PTGpgsKEnZGEq7TH/view)

![4G LTE booster mobile phone signal booster signal enhancement Three mobile signal booster indoor signal coverage voice call improvement mobile network compatibility dual band amplifier signal coverage](https://cdn.shopifycdn.net/s/files/1/0488/4129/3976/files/Coverage.jpg?v=1698191834)

  

### **Application Scenarios**

  

![4G LTE booster mobile phone signal booster signal enhancement Three mobile signal booster indoor signal coverage voice call improvement mobile network compatibility dual band amplifier home application](https://cdn.shopify.com/s/files/1/0488/4129/3976/files/application-home.png?v=1697980834)  
**Home**

![4G LTE booster mobile phone signal booster signal enhancement Three mobile signal booster indoor signal coverage voice call improvement mobile network compatibility dual band amplifier office application](https://cdn.shopify.com/s/files/1/0488/4129/3976/files/application-office.png?v=1697980832)  
**Office**

![4G LTE booster mobile phone signal booster signal enhancement Three mobile signal booster indoor signal coverage voice call improvement mobile network compatibility dual band amplifier garage application](https://cdn.shopify.com/s/files/1/0488/4129/3976/files/application-garage.png?v=1697980834)  
**Garage**

![4G LTE booster mobile phone signal booster signal enhancement Three mobile signal booster indoor signal coverage voice call improvement mobile network compatibility dual band amplifier metal buildings application](https://cdn.shopify.com/s/files/1/0488/4129/3976/files/application-metal-buildings.png?v=1697980834)  
**Metal Buildings**

1.  Q: What is a mobile phone signal booster?  
    A: A mobile phone signal booster is a device that helps improve the quality of your mobile phone service by boosting weak signals. It works by receiving a weak signal from nearby cell towers, amplifying it, and then broadcasting the stronger signal inside your home or office. This allows you to make clearer calls, send messages faster, and enjoy better internet speeds.
2.  Q: How does the 4G LTE & Calls - 250m2 booster work?  
    A: The 4G LTE & Calls - 250m2 booster receives weak mobile signals from outside, amplifies those signals, and distributes them indoors. It uses various frequencies to enhance your voice calls, text messaging, and mobile data, ensuring everyone in a 250 square meter area has a better connection.
3.  Q: Can I use this booster with any mobile phone?  
    A: Yes! The 4G LTE & Calls booster is compatible with all GSM mobile phones. Whether you have an Android or iPhone, this device will work to enhance your signals, provided your phone supports 4G or 2G networks.
4.  Q: How many devices can connect to the booster at once?  
    A: This mobile signal booster can support up to 25 devices at the same time. So, if you have family or friends using their devices, everyone can enjoy improved signal strength without interruptions.
5.  Q: Do I need to install this booster myself?  
    A: Yes, installing the 4G LTE & Calls booster is quite straightforward. The kit comes with all the necessary parts and a guide to walk you through the setup. Just follow the instructions carefully, and you’ll have it up and running in no time!
6.  Q: What if my outdoor signal is very weak?  
    A: If the signal outside your home is very weak (like having only 1-2 bars), the booster may not work effectively. It boosts existing signals but cannot create them. Ensure there is some signal outdoors for the booster to amplify.
7.  Q: Can this booster help with dropped calls?  
    A: Absolutely! One of the key benefits of using the 4G LTE & Calls booster is that it can reduce dropped calls. By strengthening your connection, you’ll experience more stable calls and fewer interruptions while talking.
8.  Q: What if I need to extend the coverage area?  
    A: If you want to extend the coverage beyond 250 square meters, you can add additional indoor antennas. This will allow more areas in your home or office to benefit from the boosted signal.
9.  Q: Is there a warranty for the booster?  
    A: Yes, the 4G LTE & Calls booster comes with a warranty. It's important to check the warranty terms for details on coverage duration and what it includes, so you are informed in case any issues arise.
10.  Q: How can I track my delivery?  
     A: After you place your order for the 4G LTE & Calls booster, you will receive a confirmation email containing a tracking number. You can use this number to follow your package through the delivery service's website.

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## Details

- **Price:** 235.0 GBP - 355.0 GBP
- **Vendor:** UKMobileBooster.com
- **Type:** Italy
- **Tags:** application 4G LTE Data & Voice Calls, coverage up to 250 sq metres, has_stock_countdown, it it, it Three, provider Three 3

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| No / No / No | 235.00 GBP | In stock |
| No / No / Yes | 255.00 GBP | In stock |
| No / Yes / No | 285.00 GBP | In stock |
| No / Yes / Yes | 305.00 GBP | In stock |
| 20 M / No / No | 255.00 GBP | In stock |
| 20 M / No / Yes | 275.00 GBP | In stock |
| 20 M / Yes / No | 305.00 GBP | In stock |
| 20 M / Yes / Yes | 325.00 GBP | In stock |
| 30 M / No / No | 265.00 GBP | In stock |
| 30 M / No / Yes | 285.00 GBP | In stock |
| 30 M / Yes / No | 315.00 GBP | In stock |
| 30 M / Yes / Yes | 335.00 GBP | In stock |
| 40 M / No / No | 275.00 GBP | In stock |
| 40 M / No / Yes | 295.00 GBP | In stock |
| 40 M / Yes / No | 325.00 GBP | In stock |
| 40 M / Yes / Yes | 345.00 GBP | In stock |
| 50 M / No / No | 285.00 GBP | In stock |
| 50 M / No / Yes | 305.00 GBP | In stock |
| 50 M / Yes / No | 335.00 GBP | In stock |
| 50 M / Yes / Yes | 355.00 GBP | In stock |

## Images

- 4G LTE booster mobile phone signal booster signal enhancement Three mobile signal booster indoor signal coverage voice call improvement mobile network compatibility dual band amplifier
- Man sitting on a couch using a smartphone with a blurred outdoor background UK Mobile Phone Signal Booster Improve Signal
- 4G LTE booster mobile phone signal booster signal enhancement Three mobile signal booster indoor signal coverage voice call improvement mobile network compatibility dual band amplifier
- 4G LTE booster mobile phone signal booster signal enhancement Three mobile signal booster indoor signal coverage voice call improvement mobile network compatibility dual band amplifier
- 4G LTE booster mobile phone signal booster signal enhancement Three mobile signal booster indoor signal coverage voice call improvement mobile network compatibility dual band amplifier
- 4G LTE booster mobile phone signal booster signal enhancement Three mobile signal booster indoor signal coverage voice call improvement mobile network compatibility dual band amplifier
- 4G LTE booster mobile phone signal booster signal enhancement Three mobile signal booster indoor signal coverage voice call improvement mobile network compatibility dual band amplifier
- 4G LTE booster mobile phone signal booster signal enhancement Three mobile signal booster indoor signal coverage voice call improvement mobile network compatibility dual band amplifier
- 4G LTE booster mobile phone signal booster signal enhancement Three mobile signal booster indoor signal coverage voice call improvement mobile network compatibility dual band amplifier
- 4G LTE booster mobile phone signal booster signal enhancement Three mobile signal booster indoor signal coverage voice call improvement mobile network compatibility dual band amplifier

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> Source: [B4U](https://www.ukmobilebooster.com/products/it-gd250-mobile-booster)
> Updated: 2026-09-02