4G LTE - 250m2 (O2/Vodafone/Telekom) Mobile Signal Booster
Enhance your indoor mobile signal by using the 4G LTE signal booster compatible with O2, Vodafone, and Telekom networks. This mobile signal booster improves the signal strength of your cell phone within a generously large area covering 250m2.





✓ Compatible with multiple users and devices
✓ Complete kit: all parts included
✓ Simpler Install and Maintenance
Extensive Coverage
Experience unparalleled mobile connectivity with the 4G LTE Mobile Signal Booster, designed to provide superior coverage up to 250 square meters. This extends seamless 4G connectivity throughout your home, café, office, or any medium-sized space, ensuring you stay connected without disruptions.
Multi-Network Compatibility
Our booster is engineered to amplify signals for O2, Vodafone, Telekom, and more in Germany, making it the perfect solution for households or businesses that rely on multiple mobile networks. Enjoy clear calls and fast data without worrying about network limitations!
User-Friendly Installation
Setting up the 4G LTE Booster couldn't be easier! The complete kit comes with everything you need, including an outdoor and indoor antenna. No special tools or expertise required - just plug it in, point the outdoor antenna toward the nearest cell tower, and enjoy boosted signals instantly!
Enhanced Call Clarity
Transform the way you communicate with enhanced voice clarity and reduced call drops. The 4G LTE Mobile Signal Booster leverages VoLTE technology, allowing you to make crystal-clear voice calls over the 4G network. Say goodbye to frustrating dropped calls and hello to reliable communication!
Support for Multiple Users
With the capability to support up to 25 simultaneous users and devices, this booster is perfect for busy homes or small offices. Everyone can enjoy enhanced 4G reception regardless of device type, whether it's a smartphone, tablet, or laptop.
Quality Assurance
Invest in a reliable solution backed by quality assurance. The 4G LTE Mobile Signal Booster features built-in safety protections and robust construction, ensuring long-lasting performance. Rest assured, you'll enjoy stable connections for years to come without worrying about device failure.
4G LTE mobile signal booster O2 signal booster Vodafone signal booster Telekom signal booster indoor coverage booster mobile signal enhancement cellular amplifier 250m2 coverage area
It boost 4G/LTE signal on 800MHz frequency, the frequency used in Germany used by mobile networks to deliver their 4G mobile services. It can boost all networks on O2, Telekom, Vodafone, Callmobile, Debitel Light, Hellomobil, HTP mobil, Kabel Deutschland, MobilCom-Debitel for improving 4G/LTE signal. 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. 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.
Reliable 4G/LTE Data
Faster Uploads & Downloads
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.
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

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.
Specification
Application & Bands | [4G/LTE] (Band 20) |
Country | Germany |
Boost All On | O2 (4G) Telekom (4G) Vodafone (4G) Callmobile (4G) Debitel Light (4G) Hellomobil (4G) HTP mobil (4G) Kabel Deutschland (4G) MobilCom-Debitel (4G) |
Users Supporting | 25 Simultaneously |
Band | Single Band 20 |
Frequency | 800MHz |
Gain(dB) | Uplink Gp≥50; Downlink Gp≥55 |
Up-link | 832~862 MHz |
Down-link | 791~821 MHz |
Export Power(Po) | ≥10dBm |
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 1 x 5 Meters Indoor Cable |
Expandable coverage by adding a second indoor antenna if the outside signal is strong.

2 Indoor Antennas

3 Indoor Antennas

4 Indoor Antennas

10 Indoor Antennas
Custom your solution:
2 Way Splitter | 3 Way Splitter | 4 Way Splitter | Indoor Cable | Indoor Antenna
How It Works

1
The powerful antenna reaches out to access a voice and 3G, 4G, and LTE data signal, and delivers it to the booster
2
The booster receives the signal, amplifies it, and serves as a relay between your phone and the nearest cell tower.
3
Your devices get increased cell reception, and calls and data are fed through the booster back to the network.
Get stronger signal

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.
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
- Connect the indoor antenna to the MS port.
- Connect the outdoor antenna to the BS Port.
- Install the outdoor antenna and keep a minimum vertical distance of 10 meters from the indoor antenna.
- Point the outdoor antenna to the direction where you know there is possibly a higher signal strength from the base station.
- Power on the booster and check the signal strength.
- 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.

Application Scenarios

Home

Office

Garage

Metal Buildings
- Q: What is a mobile signal booster?
A: A mobile signal booster is a device that helps improve your mobile phone's reception by amplifying the signal from outside. It takes the weak signals that your phone cannot use and makes them stronger, so you can enjoy better calls and faster internet. - Q: How does the 4G LTE mobile signal booster work?
A: The 4G LTE mobile signal booster works by capturing weak signals from nearby cell towers using an outside antenna. It boosts these signals and sends them to an indoor antenna, making it easier for your phone to connect to the network, even in areas with poor signal. - Q: Who can use this signal booster?
A: This signal booster can be used by anyone who is having trouble with their mobile phone signal indoors. It is perfect for homes, offices, cafes, and restaurants where weak signals can be frustrating. - Q: How much coverage can I expect?
A: This specific booster covers an area of up to 250 square meters, which is about the size of a large house or a small business. If your space is bigger, you might need to add extra antennas. - Q: Is it easy to install the mobile signal booster?
A: Yes! The mobile signal booster comes with all the parts you'll need for installation and a simple guide. Most people can set it up without any specialized tools or knowledge. - Q: Do I need a strong signal outside for the booster to work?
A: Yes, you need at least a weak signal outside (about 1-2 bars) for the booster to work effectively. If there is no signal outside, the booster cannot create one. - Q: Can multiple users use the signal booster at the same time?
A: Absolutely! This booster can support up to 25 users at the same time, so everyone can enjoy an improved signal without interference. - Q: What should I do if my signal doesn't improve?
A: If your signal does not improve after installation, try adjusting the outdoor antenna to point towards the nearest cell tower. Additionally, ensure that all connections are secure and that there is some signal outside. - Q: Is the booster compatible with all mobile providers?
A: Yes, the 4G LTE mobile signal booster works with many mobile providers, including O2, Vodafone, and Telekom. This means you can boost the signal for your specific network easily. - Q: What if I have questions after purchasing?
A: If you have any questions after buying the booster, you can reach out to customer support. They are happy to help with any concerns or provide additional information you might need.
Quick delivery despite COVID-19 outbreak, get it in a couple of days.
Nick Baker (UK, Leeds)
I am really happy that I decided to order a booster on UKMobileBooster.com. Due to the pandemic of coronavirus, we have taken a decision to stay at home. But of course, in our case self-isolation could have presupposed full isolation from the whole world as the quality of our mobile signal at home used to leave much to desire.
In home O2 signal booster is a perfect solution for small cottages.
Mark Smith (UK, Wigston)
I would recommend this booster to anyone, because it’s a really good option for small cottages, the price is very adequate, and the whole system itself is safe and compact. It doesn’t waste a lot of energy while it’s working, and turns off automatically when not used, and I noticed that it actually saves the battery of my phone.
Three Mobile signal problems have finally stopped irritating me!
Greg Ryan (Ireland, Wicklow)
I am writing to express my deep gratitude to seller team. These guys have really helped me! I had dozens of questions and I was really afraid to make an order online (as it was my first online purchase), but very polite specialists gave me very useful recommendations and now I can say without any doubts that it is a wonderful company!
How I managed to solve my Vodafone mobile phone signal problems
Peter Barrett (UK, Somerset)
If you are fed up with mobile signal issues, try to use GBC100. We like it! I would definitely recommend this device (or other products of this seller) to anyone facing the same EE 4G signal problems in the UK. The device is really worth the price!

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