# 3G & Calls - 300m2 (Claro/Movistar/Virgin Mobile) Cell Phone Signal Booster ##### **Effortless Signal Boosting** The 3G & Calls - 300m2 cell phone signal booster effectively amplifies mobile signals at the 850MHz frequency, ensuring you stay connected. Designed especially for Claro, Movistar, and Virgin Mobile users in Colombia, it enhances not just 3G signals but also 2G, paving the way for seamless voice calls, texts, and data usage. Ideal for homes, cafes, and restaurants, it transforms areas of up to 300 m² into signal-rich environments. ##### **Uninterrupted Connections** Say goodbye to dropped calls and frustrating signal issues. With this booster, enjoy reliable 3G data and calls, eliminating interruptions when you need to communicate the most. It’s a perfect solution for both personal and business use, ensuring that your calls remain clear and your data usage smooth. ##### **Wider Reception Coverage** This device significantly extends your mobile reception, covering up to 300 square meters. Whether you’re in a cozy home, busy cafe, or lively restaurant, you can count on strong reception. Experience the freedom to surf the web and talk without signal worries — all in one go! ##### **Upgrade Options Available** Flexibility meets functionality with our upgrade options. Whether you need longer external cables, a higher gain Yagi antenna for better performance, or a lightning surge protector to safeguard your investment, we have tailored solutions that enhance your booster experience for optimal performance. ##### **User-Friendly Setup** Installing the 3G & Calls booster is straightforward! Just follow the easy-to-understand steps — from connecting antennas to optimizing signal direction. You can have your mobile space up and running in no time, bringing you the reliable connectivity you desire without a hassle. ##### **Adaptable for Various Environments** This signal booster is uniquely adaptable, fitting perfectly into various settings including homes, offices, garages, and even metal buildings. No matter where you face connectivity hurdles, our booster is engineered to enhance 3G and 2G signals effortlessly, making it a versatile solution for all your communication needs. 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 suitable for medium size, boost indoor signal areas up to **300 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 300 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 30 Simultaneously Band Single Band 5 Frequency 850MHz Gain(dB) Uplink Gp≥60; Downlink Gp≥65 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 the signal strength of your mobile phone. It takes weak signals from outside your home or office, amplifies them, and makes them stronger so that your calls, texts, and internet connection work better. This can help you avoid dropped calls and slow internet. 2. How does the 3G & Calls Booster work? - The 3G & Calls Booster works by receiving weak signals through an external antenna. It then boosts these signals and sends them to an indoor antenna. This makes the phone connections clearer and stronger. After that, it sends signals from your phone back to the cell tower, improving your overall connectivity. 3. What areas can the 3G & Calls Booster cover? - The 3G & Calls Booster can effectively cover areas up to 300 square meters. This means it is great for medium-sized homes, cafes, restaurants, and other venues where people need better phone signals for calls and data. 4. Which mobile networks does this booster support? - This booster supports Claro, Movistar, and Virgin Mobile networks. It works on the 850 MHz frequency, which is commonly used in Colombia for voice calls and 3G data services. 5. Do I need a strong signal outside to use the booster? - Yes, you need to have at least a weak signal (1-2 bars) outside for the booster to work effectively. If there is no signal outdoors, the booster won't be able to create one and may not operate. 6. What if I need a longer cable for installation? - If the standard 10-meter external cable that comes with the booster is not long enough for your setup, you can upgrade to a longer cable. This helps in positioning the external antenna in the best spot while keeping the booster indoors. 7. How many users can connect to the booster at the same time? - The booster can support up to 30 users simultaneously. This means that multiple devices can benefit from the improved signal strength at the same time, making it ideal for homes or small businesses. 8. Is installation of the booster complicated? - Installing the booster is quite straightforward! You'll need to connect the indoor antenna to the booster, install the outdoor antenna, and adjust its position for the best signal. Full instructions are included in the user manual to guide you. 9. What is a lightning surge protector? - A lightning surge protector is an accessory that helps protect your signal booster from electrical surges due to lightning strikes. It's important to have one installed if your external antenna is high up to prevent damage and keep your device safe. 10. How can I check my phone's signal band? - To check your phone's signal band, you can dial \*3001#12345#\* on an iPhone and check 'Serving Cell Info' for the frequency band. For Android, you can download the 'LTE Discovery' app and check the 'SIGNALS' section. TAGES: 3G mobile signal booster, Claro signal booster, Movistar network booster, Virgin Mobile signal improvement, indoor signal boost, 850MHz frequency booster, dropped call elimination, mobile coverage enhancement ## Details - **Price:** 183.82 GBP - 303.82 GBP - **Vendor:** UKMobileBooster.com - **Type:** Colombia - **Tags:** application 3G Data & Voice Calls, co co, coverage up to 300 sq metres, frequency 850MHz, provider Claro, provider Movistar, provider Virgin ## Variants | Variant | Price | Available | |---------|-------|-----------| | No / No / No | 183.82 GBP | In stock | | No / No / Yes | 203.82 GBP | In stock | | No / Yes / No | 233.82 GBP | In stock | | No / Yes / Yes | 253.82 GBP | In stock | | 20 M / No / No | 203.82 GBP | In stock | | 20 M / No / Yes | 223.82 GBP | In stock | | 20 M / Yes / No | 253.82 GBP | In stock | | 20 M / Yes / Yes | 273.82 GBP | In stock | | 30 M / No / No | 213.82 GBP | In stock | | 30 M / No / Yes | 233.82 GBP | In stock | | 30 M / Yes / No | 263.82 GBP | In stock | | 30 M / Yes / Yes | 283.82 GBP | In stock | | 40 M / No / No | 223.82 GBP | In stock | | 40 M / No / Yes | 243.82 GBP | In stock | | 40 M / Yes / No | 273.82 GBP | In stock | | 40 M / Yes / Yes | 293.82 GBP | In stock | | 50 M / No / No | 233.82 GBP | In stock | | 50 M / No / Yes | 253.82 GBP | In stock | | 50 M / Yes / No | 283.82 GBP | In stock | | 50 M / Yes / Yes | 303.82 GBP | In stock | ## Images - 3G & Calls - 300m2 (Claro/Movistar/Virgin Mobile) Cell Phone Signal Booster - 3G & Calls - 300m2 (Claro/Movistar/Virgin Mobile) Cell Phone Signal Booster - 3G & Calls - 300m2 (Claro/Movistar/Virgin Mobile) Cell Phone Signal Booster - 3G & Calls - 300m2 (Claro/Movistar/Virgin Mobile) Cell Phone Signal Booster - 3G & Calls - 300m2 (Claro/Movistar/Virgin Mobile) Cell Phone Signal Booster - 3G & Calls - 300m2 (Claro/Movistar/Virgin Mobile) Cell Phone Signal Booster - 3G & Calls - 300m2 (Claro/Movistar/Virgin Mobile) Cell Phone Signal Booster - 3G & Calls - 300m2 (Claro/Movistar/Virgin Mobile) Cell Phone Signal Booster - 3G & Calls - 300m2 (Claro/Movistar/Virgin Mobile) Cell Phone Signal Booster --- > Source: [B4U](https://www.ukmobilebooster.com/products/co-t300-mobile-booster) > Updated: 2026-09-02