# 3G & Calls - 250m2 (Claro/Movistar/Virgin Mobile) Cell Phone Signal Booster ##### **Elevate Your Connection** Experience enhanced 3G connectivity and crystal-clear calls with our powerful booster working on 850MHz frequency. Tailored for Claro, Movistar, and Virgin Mobile, it ensures seamless communication in your home or business, preventing frustrating dropped calls. ##### **Spacious Coverage** Designed for medium-sized spaces, our booster effectively covers up to 250 m². Whether it’s a cozy café, bustling restaurant, or your own living room, enjoy dependable cell signal throughout every corner of your space. ##### **Reliable Performance** With the ability to support up to 25 simultaneous users, this booster ensures that everyone can enjoy fast, consistent 3G data and voice calls without interruption. Stay connected with your family, friends, or colleagues all at once. ##### **Flexible Upgrade Options** Customize your booster experience with our upgrade options. Choose longer cables or high-gain antennas for superior performance, allowing you to perfect signal reception based on your unique environment and distance from cell towers. ##### **User-Friendly Installation** Set up is a breeze! With straightforward instructions and a user manual available, you’ll have your booster up and running in no time. Just link the outdoor and indoor antennas, and power it on for enhanced coverage. ##### **Durable Protection** Protect your investment with our Lightning Surge Protector designed to shield your equipment from surges, ensuring long-lasting performance. Easily install it for peace of mind during storms and unexpected weather events. It boost **3G and Calls** signal on 850MHz frequency, the frequency used in **Colombia** used by mobile networks to deliver their mobile services: 3G and 2G. It work on 850Mhz (Band 5) frequency can boost Claro, Movistar and Virgin Mobile mobile carrier networks for improving **3G, Voice Calls and Texts** signal. 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. * * * **Wow 3G Calls** Eliminates Dropped Calls **Consistent Connection** Reliable 3G Data **Signal Wider Coverage** Reception Up to 250 sq.m. * * * ### 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 Mobile Signal Booster UK Networks EE Vodafone O2 Indoor Coverage Improve Signal cables](https://cdn.shopify.com/s/files/1/0488/4129/3976/files/Signal-Booster-Cable.jpg?v=1693125491) * * * ### 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 to shown dBm reading on phone? Check [Quick Start Guide](https://www.ukmobilebooster.com/pages/quick_start_guide) ![4G LTE Mobile Signal Booster UK Networks EE Vodafone O2 Indoor Coverage Improve Signal 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 Mobile Signal Booster UK Networks EE Vodafone O2 Indoor Coverage Improve Signal surge protector](https://cdn.shopifycdn.net/s/files/1/0488/4129/3976/files/ProductPageSurgeProtector.webp?v=1600640184) * * * ### Specification (scroll to view all) Application & Bands \[3G Data & Voice Calls\] (Band 5) Country Colombia **Boost All On** Claro (3G & 2G) Movistar (3G & 2G) Virgin Mobile (3G & 2G) Users Supporting 25 Simultaneously Band Single Band 5 Frequency 850MHz Gain(dB) Uplink Gp≥55; Downlink Gp≥60 Up-link 824~849 MHz Down-link 869~894 MHz Export Power(Po) ≥17dBm 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 Power Adapter 1 x 10 Meters Outdoor Cable **Warming Tips:** - Band Confirmation: This booster can boost signals on Band 5, 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 Mobile Signal Booster UK Networks EE Vodafone O2 Indoor Coverage Improve Signal 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 Mobile Signal Booster UK Networks EE Vodafone O2 Indoor Coverage Improve Signal 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 Mobile Signal Booster UK Networks EE Vodafone O2 Indoor Coverage Improve Signal 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 Mobile Signal Booster UK Networks EE Vodafone O2 Indoor Coverage Improve Signal signal coverage](https://cdn.shopifycdn.net/s/files/1/0488/4129/3976/files/Coverage.jpg?v=1698191834) ### **Application Scenarios** ![4G LTE Mobile Signal Booster UK Networks EE Vodafone O2 Indoor Coverage Improve Signal home application](https://cdn.shopify.com/s/files/1/0488/4129/3976/files/application-home.png?v=1697980834) **Home** ![4G LTE Mobile Signal Booster UK Networks EE Vodafone O2 Indoor Coverage Improve Signal office application](https://cdn.shopify.com/s/files/1/0488/4129/3976/files/application-office.png?v=1697980832) **Office** ![4G LTE Mobile Signal Booster UK Networks EE Vodafone O2 Indoor Coverage Improve Signal garage application](https://cdn.shopify.com/s/files/1/0488/4129/3976/files/application-garage.png?v=1697980834) **Garage** ![4G LTE Mobile Signal Booster UK Networks EE Vodafone O2 Indoor Coverage Improve Signal metal buildings application](https://cdn.shopify.com/s/files/1/0488/4129/3976/files/application-metal-buildings.png?v=1697980834) **Metal Buildings** 1. What is a cell phone signal booster? - A cell phone signal booster is a device that helps improve your mobile phone signal. It works by taking a weak signal from outside your home or office, making it stronger, and then sending that stronger signal inside. This means you can make calls and use data without interruptions. 2. How does the 3G & Calls booster work? - The 3G & Calls booster works in three main steps. First, it receives a weak cell signal from outside through an outdoor antenna. Then, the booster amplifies this signal to make it stronger. Finally, the booster sends this stronger signal inside so your phone has better reception for calls and internet. 3. Who can benefit from using this signal booster? - Anyone who struggles with poor cell phone reception can benefit! This includes people living in remote areas, those with thick walls in their homes, or anyone wanting to improve their signal when in large spaces like cafes or offices. 4. How big of an area can this booster cover? - The 3G & Calls booster can cover indoor areas up to 250 square meters, which is about the size of a large home or small office. So, it can help many people stay connected within that space! 5. Can I use the booster with any mobile carrier? - This specific booster is designed to work with Claro, Movistar, and Virgin Mobile in Colombia. It boosts signals for 3G and 2G services used by these networks. 6. What do I need to check before installing the booster? - Before installing the booster, make sure you have at least 1-2 bars of signal outside your place. If there’s no signal at all outside, the booster won’t work. You should also check if your phone operates on Band 5, which is what this booster amplifies. 7. Is it difficult to install the signal booster? - Not at all! Installing the signal booster is pretty straightforward. You just need to connect the outdoor antenna, the indoor antenna, and the power adapter. Make sure you follow the instructions carefully, and you'll have it set up in no time! 8. What happens if the booster doesn’t work? - If the booster isn’t working, check if there’s a weak signal outside, as the booster needs some signal to amplify. Ensure all connections are secure, and refer to the manual for troubleshooting. If problems persist, customer support can provide further assistance. 9. Does it require any monthly fees? - No, there are no monthly fees for using the booster. Once you purchase it and install it, you just enjoy improved signal without any ongoing costs. 10. Can I upgrade my signal booster? - Yes! You can upgrade your booster with options like longer cables and a higher gain antenna for better performance, especially if you have a low signal outside. Upgrades can help enhance your signal further. TAGES: 3G signal booster, mobile signal booster, Claro Movistar Virgin Mobile, enhance cell signal, 850MHz frequency, home signal solution, improve voice calls, medium coverage area ## Details - **Price:** 169.0 GBP - 289.0 GBP - **Vendor:** UKMobileBooster.com - **Type:** Colombia - **Tags:** application 3G Data & Voice Calls, co co, coverage up to 250 sq metres, frequency 850MHz, provider Claro, provider Movistar, provider Virgin ## Variants | Variant | Price | Available | |---------|-------|-----------| | No / No / No | 169.00 GBP | In stock | | No / No / Yes | 189.00 GBP | In stock | | No / Yes / No | 219.00 GBP | In stock | | No / Yes / Yes | 239.00 GBP | In stock | | 20 M / No / No | 189.00 GBP | In stock | | 20 M / No / Yes | 209.00 GBP | In stock | | 20 M / Yes / No | 239.00 GBP | In stock | | 20 M / Yes / Yes | 259.00 GBP | In stock | | 30 M / No / No | 199.00 GBP | In stock | | 30 M / No / Yes | 219.00 GBP | In stock | | 30 M / Yes / No | 249.00 GBP | In stock | | 30 M / Yes / Yes | 269.00 GBP | In stock | | 40 M / No / No | 209.00 GBP | In stock | | 40 M / No / Yes | 229.00 GBP | In stock | | 40 M / Yes / No | 259.00 GBP | In stock | | 40 M / Yes / Yes | 279.00 GBP | In stock | | 50 M / No / No | 219.00 GBP | In stock | | 50 M / No / Yes | 239.00 GBP | In stock | | 50 M / Yes / No | 269.00 GBP | In stock | | 50 M / Yes / Yes | 289.00 GBP | In stock | ## Images - 3G & Calls - 250m2 (Claro/Movistar/Virgin Mobile) Cell Phone Signal Booster - 3G & Calls - 250m2 (Claro/Movistar/Virgin Mobile) Cell Phone Signal Booster - 3G & Calls - 250m2 (Claro/Movistar/Virgin Mobile) Cell Phone Signal Booster - 3G & Calls - 250m2 (Claro/Movistar/Virgin Mobile) Cell Phone Signal Booster - 3G & Calls - 250m2 (Claro/Movistar/Virgin Mobile) Cell Phone Signal Booster - 3G & Calls - 250m2 (Claro/Movistar/Virgin Mobile) Cell Phone Signal Booster - 3G & Calls - 250m2 (Claro/Movistar/Virgin Mobile) Cell Phone Signal Booster - 3G & Calls - 250m2 (Claro/Movistar/Virgin Mobile) Cell Phone Signal Booster - 3G & Calls - 250m2 (Claro/Movistar/Virgin Mobile) Cell Phone Signal Booster --- > Source: [B4U](https://www.ukmobilebooster.com/products/co-t250-mobile-booster) > Updated: 2026-09-02