# 3G & Calls - Car Vehicle Caravan (Viettel Mobile/MobiFone/VNPT Vinaphone/Vietnamobile) Mobile Signal Booster ##### **Compact Design** Designed with portability in mind, our 3G & Calls booster is as small as a cigarette box, making it easy to carry and install in various small spaces for efficient signal coverage. ##### **Hassle-Free Installation** Say goodbye to complicated setups! Our booster requires no intricate installation processes, allowing you to enjoy improved signals in no time. ##### **Automatic Signal Adjustment** Smart technology ensures optimal performance; the booster automatically adjusts its gain based on external signal strength, providing you with the best quality reception. ##### **Power Flexibility** Enjoy the convenience of multiple power options. Whether you’re using a 220VAC adapter, mobile power pack, or the vehicle’s power adapter, our booster adapts to your needs. ##### **Health-Conscious Technology** With a solid signal coverage, our device minimizes the radiation intensity affecting your mobile phone, promoting a healthier usage experience for you and your loved ones. ##### **Eco-Friendly Operation** When not in use, easily unplug or detach the device to eliminate any radiation, ensuring an environmentally-friendly approach to mobile connectivity. It boost **3G and Calls** signal on 900MHz, 2100MHz frequencies, the frequencies used in **Vietnam** used by mobile networks to deliver their mobile services: 3G, 3.5G (also known as HSDPA provides faster data rates than 3G) and 2G. It work on both 900Mhz (Band 8) & 2100Mhz (Band 1) frequencies for improving Viettel Mobile, MobiFone, VNPT Vinaphone and Vietnamobile mobile carrier networks **3G, Voice Calls and Text** signal. This system is compatible with all 3G mobile phone networks, will provide coverage on both 900MHz, 2100MHz frequency **simultaneously**. It's Dual Band booster and is an **ESSENTIAL** if many people in the same household are on different mobile phone networks! * * * **Wow 3G Calls** Eliminates Dropped Calls **Clear Voice** No Miss Important Calls **Consistent Connection** Reliable 3G Data **Send/Receive SMS** SMS Text Messages Quickly **3G Internet** Faster Uploads & Downloads **Signal Wider Coverage** Vehicle Signal Improved * * * ### Upgrade External Aerial External fishtail aerial connects via 3 meter coax lead to the signal booster unit which is located inside the car. The aerial with **Three** magnets, its more stable. ![mobile phone signal booster for car vehicle Upgrade External Aerial of fishtail aerial bottom](https://cdn.shopifycdn.net/s/files/1/0488/4129/3976/files/ProductPageFishtailAerialUpgradedBottom.webp?v=1600636900) ![mobile phone signal booster for car vehicle Upgrade External Aerial of fishtail aerial](https://cdn.shopifycdn.net/s/files/1/0488/4129/3976/files/ProductPageFishtailAerial.webp?v=1600636899) * * * ### Features **1\. Convenient**\--- small beautiful appearance (cigarette box size), easy to carry, suitable for a variety of small space signal coverage. **2\. Easy to use**\--- needs no complicated installation. **3\. Open**\--- according to the external signal strength, automatic gain control ensure the signal. **4\. Flexible**\---- can choose different power adapters, such as 220VAC adapter, mobile power, vehicle power adapter etc. **5\. Low radiation**\--- a good signal coverage can reduce the radiation intensity of the mobile phone itself, effectively reduce the mobile phone radiation may harm the human body. **6\. Environmental protection**\--- when you do not need to use the telephone or the Internet, can be removed at any time or unplug the power, elimination of radiation. ![mobile phone signal booster for car vehicle 01](https://cdn.shopifycdn.net/s/files/1/0488/4129/3976/files/ProductPageCV01.webp?v=1600636899) ![mobile phone signal booster for car vehicle 02](https://cdn.shopifycdn.net/s/files/1/0488/4129/3976/files/ProductPageCV02.webp?v=1600636900) * * * ### Specification Application & Bands \[Car, Vehicle 3G Data and Voice Calls\] (Band 8, 1) Country Vietnam **Boost All On** Viettel Mobile (3G & 2G) MobiFone (3G & 2G) VNPT Vinaphone (3G & 2G) Vietnamobile (3G & 2G) Users Supporting 15 Simultaneously Band Dual Band 8 & 1 Frequency 900 & 2100MHz Gain(dB) Uplink 45±2; Downlink 40±2 Up-link 890~915 MHz; 1930~1990 MHz Down-link 935~960 MHz; 2110~2180 MHz Export Power(Po) Uplink 10; Downlink 10 Power Adapter 5V DC Kit Includes 1 x Car Signal Booster/Amplifier 1 x External Magnetic-Mount Aerial 1 x 5V DC Car Power Adapter 1 x Easy to Follow Installation Manual **Warming Tips:** - Band Confirmation: This booster can boost signals on Band 8, or Band 1, 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. ### **How It Works** ![how Mobile Signal Booster, Car Signal Booster, O2 Vodafone Giffgaff, UK Mobile Network, Voice Calls Amplifier, Vehicle Signal Improvement, 900MHz Frequency Booster, External Aerial Installation work for Car Vehicle](https://cdn.shopifycdn.net/s/files/1/0488/4129/3976/files/ProductPageHIWcar-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. 1. Outside Antenna: Pulls in tower Signal. 2. Signal Booster: Amplifies the Signal. 3. Inside Antenna: Re-broadcasts Signal. 4. Mobile Phone: Gets Boosted Signal. ![how Mobile Signal Booster, Car Signal Booster, O2 Vodafone Giffgaff, UK Mobile Network, Voice Calls Amplifier, Vehicle Signal Improvement, 900MHz Frequency Booster, External Aerial Installation work for Car Vehicle](https://cdn.shopifycdn.net/s/files/1/0488/4129/3976/files/ProductPagehowitworksvehicles.webp?v=1600636900) #### **Installation** 1. Mount external aerial on top back. 2. Install the booster and interior antenna. 3. External aerial connect to "BS" on the booster, and interior antenna connect to "MS". **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) ![how Mobile Signal Booster, Car Signal Booster, O2 Vodafone Giffgaff, UK Mobile Network, Voice Calls Amplifier, Vehicle Signal Improvement, 900MHz Frequency Booster, External Aerial Installation work for Car Vehicle](https://cdn.shopifycdn.net/s/files/1/0488/4129/3976/files/ProductPageCarVehicle02.webp?v=1600636900) ### **Application Scenarios** ![Mobile Signal Booster, Car Signal Booster, O2 Vodafone Giffgaff, UK Mobile Network, Voice Calls Amplifier, Vehicle Signal Improvement, 900MHz Frequency Booster, External Aerial Installation vehicle car truck suv van application](https://cdn.shopifycdn.net/s/files/1/0488/4129/3976/files/application-vehicle-car.jpg?v=1698366474) ![Mobile Signal Booster, Car Signal Booster, O2 Vodafone Giffgaff, UK Mobile Network, Voice Calls Amplifier, Vehicle Signal Improvement, 900MHz Frequency Booster, External Aerial Installation vehicle car truck suv van application](https://cdn.shopifycdn.net/s/files/1/0488/4129/3976/files/application-vehicle-truck.jpg?v=1698366474) ![Mobile Signal Booster, Car Signal Booster, O2 Vodafone Giffgaff, UK Mobile Network, Voice Calls Amplifier, Vehicle Signal Improvement, 900MHz Frequency Booster, External Aerial Installation vehicle car truck suv van application](https://cdn.shopifycdn.net/s/files/1/0488/4129/3976/files/application-vehicle-suv.jpg?v=1698366473) ![Mobile Signal Booster, Car Signal Booster, O2 Vodafone Giffgaff, UK Mobile Network, Voice Calls Amplifier, Vehicle Signal Improvement, 900MHz Frequency Booster, External Aerial Installation vehicle car truck suv van application](https://cdn.shopifycdn.net/s/files/1/0488/4129/3976/files/application-vehicle-van.jpg?v=1698366473) 1. What is a 3G and Calls signal booster? - A 3G and Calls signal booster is a device that improves your mobile phone signal by amplifying it. This booster works on both 900MHz and 2100MHz frequencies, enhancing calls, texts, and 3G internet data, making it easier for you to stay connected. 2. How does the signal booster work? - The signal booster receives weak mobile signals from outside, amplifies them, and then sends the stronger signal inside your car. It does not create signals on its own, so if there's no signal outside, it won't work. 3. Is installation of the signal booster difficult? - Not at all! The signal booster kit comes with everything you need and has an easy-to-follow installation manual. You can set it up without any complicated tools or technical skills. 4. Can the signal booster help with dropped calls? - Yes! One of the main benefits of using a 3G and Calls signal booster is that it helps eliminate dropped calls. You’ll have clearer voice connections, so you won't miss important conversations. 5. Will it work for all mobile networks in Vietnam? - Yes! This signal booster is compatible with major mobile networks in Vietnam, including Viettel Mobile, MobiFone, VNPT Vinaphone, and Vietnamobile. It improves both voice calls and data for all these networks. 6. What do I need to check my mobile band frequency? - You can check which frequency band your mobile phone is using by dialing \*3001#12345# on your iPhone and looking at 'Freq Band Indicator'. Alternatively, you can use apps like 'CellMapper' or 'Network Signal Info Pro'. 7. How many devices can connect to the signal booster at once? - The 3G signal booster can support up to 15 devices simultaneously. This means that multiple people in your vehicle can enjoy improved signal strength without any issues. 8. Is it safe to use a signal booster? - Yes, the signal booster is designed to be safe. It has low radiation, and good signal coverage can even help reduce the radiation emitted by your mobile phone. 9. What should I do if there’s no signal outside? - If there’s no signal outside, the booster won’t be able to amplify anything. It’s important to find areas where you can get at least a weak signal for the booster to work effectively. 10. What items are included in the booster kit? - The booster kit includes everything you need for installation: a car signal booster unit, an external magnetic-mount aerial, a 12V DC car power adapter, and an easy-to-follow installation manual. TAGES: 3G signal booster, mobile phone signal booster, Viettel Mobile, MobiFone, VNPT Vinaphone, 3G coverage Vietnam, dual band booster, improve mobile signal ## Details - **Price:** 259.99 GBP - 287.56 GBP - **Vendor:** UKMobileBooster.com - **Type:** Vietnam - **Tags:** application 3G Data & Voice Calls, application vehicle, has_stock_countdown, provider MobiFone, provider Vietnamobile, provider Viettel Mobile, provider VNPT (VinaPhone), vn vn ## Variants | Variant | Price | Available | |---------|-------|-----------| | No | 259.99 GBP | In stock | | Yes | 287.56 GBP | In stock | ## Images - 3G & Calls - Car Vehicle Caravan (Viettel Mobile/MobiFone/VNPT Vinaphone /Vietnamobile) Mobile Signal Booster - Car Vehicle Mobile Signal Booster Aerial - Mobile Signal Booster Package - Car Vehicle Mobile Signal Booster How It Works - Car Vehicle Mobile Signal Booster Best Installation - Car Vehicle Mobile Signal Booster - Car Vehicle Mobile Signal Booster --- > Source: [B4U](https://www.ukmobilebooster.com/products/vn-cvgw-mobile-booster) > Updated: 2026-09-02