Cell Phone Range Extender Nikrans NS550-GSM+4G

Indoor coverage:
6000 ft²
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Customer Reviews: 5

2 Band
Kit contents
  • NS550-GSM+4G/LTE extender,
  • indoor antenna + 5m cable,
  • outdoor antenna + 10m cable,
  • power supply,
  • user manual.
Shipping (3-7 business days) to United Kingdom
  • 5-step pre-delivery check
  • 30-DAY return policy
  • 3-YEAR warranty & service
  • Secure payments


No dropped phone calls, good clarity, high speed 4G internet, clear video calls, online gaming, and more! Do all that you can with a powerful and reliable Nikrans NS-550 GSM+4G/LTE signal repeater! This mobile phone network extender works best for improving voice call quality and 4G signal for speedy Internet.

The Nikrans NS-550 GSM+4G/LTE cell phone range extender is a powerful repeater capable of amplifying signals in areas of up to 550 m2 (5900 ft2). Due to the enhanced network coverage, this model is ideally suitable for villas, shopping centres, apartments, restaurants, supermarkets, parking areas, and underground offices, etc.

The Nikrans signal repeater NS550-GSM+4G/LTE has health and safety certifications from CE and RoHS, meaning that the device is 100% non-hazardous.

The device operates at 900 MHz GSM and 2600/1800 MHz LTE frequency bands. Upon receiving your order, our managers will contact you for clarifying your network provider’s frequency and shipping you the most appropriate GSM+LTE model with the right frequencies.

Get blazing fast LTE Internet and excellent voice calls with professional Nikrans NS-550 GSM+4G/LTE signal repeater!


Coverage: 6000 ft²
Up-link freq: 880~915MHz & 832-862MHz & 2500-2570MHz
Down-link freq: 925~960MHz & 791-821MHz / 2620-2690MHz
Up-link Gain: 60 dB
Down-link Gain: 65 dB
Power Output: 16 dBm
Working t °C: -25/+55 °C
Humidity: 5 - 95 %
Size (mm): 250 × 220 × 52
Booster Weight: 3.2 kg
Power supply: Input AC90~264V, output DC 9V
Model Year: 2017
Download Manual Download Datasheet

How it works

Given the capacity of Cell Phone Range Extender Nikrans NS550-GSM+4G to amplify the signal across the indoor area of nearly 550 m2 (5900 ft2), such a booster can become an excellent device for restaurants, cafes, supermarkets, hotels and large private house where there are problems with mobile connection. The device was designed in accordance with the highest internationally recognized standards which guarantees its safety in use. Nevertheless, you should carefully follow all the recommendations that can be found in the manual included into your order. Do not ignore the requirements for its installment and usage and get in touch with our technical specialists as soon as possible if something goes wrong.

Customer Reviews

 ·  P  ·  Verified Buyer  · 

Improves Reception

I installed it in my guest house. There were only 3-4 bars in the hall, and hardly any in the rooms. When I plugged the booster in, it immediately started to amplify the signal and the phone showed 4 bars everywhere.

Dear Patricia, thank you for the review. We are glad that you are satisfied with the result. Best regards, Support team.

 ·  R  ·  Verified Buyer  · 

See No Drawbacks

Because of the massive concrete walls of my countryside villa I practically had no mobile signal inside the building. But with this device everything is all right. Its installation is relatively simple, the working process is understandable. It serves me for receiving calls and using Internet. I see no drawbacks!

Dear Richard, thank you for the review. We are happy to have solved your problem. Best regards, Support team.

 ·  G  ·  Verified Buyer  · 

My Wife is Happy

My wife has a café in the central part of the town, where the signal is bad. I bought her this device to amplify the reception and it really helped. The coverage has become much better, my wife liked it!

Dear Garry, thank you for the review. We are glad that your wife liked the device. Kindest regards, Support team.

 ·  D  ·  Verified Buyer  · 

You Won’t Regret

The set up of the booster is very easy and fast. It took me about 30 minutes only. After the installation the mobile phone was able to catch 4 bars in the room where there used to be no signal at all.

Dear David, thank you for the feedback. We are glad that your problem has been solved. Kindest regards, Support team.

 ·  R  ·  Verified Buyer  · 

Strengthened Signal

The device is effective. I bought it to solve the problem with poor reception on the ground floor of the hostel. Believe it or not, but the customers haven't complained since I installed the amplifier.

Dear Robert, thank you for the review. We are glad to help your business. Kindest regards, Support team.

Case Studies

Jeremy Herbert, Morecambe

Attractive prices and reliable equipment.

When me and my family, who were also very interested in solving our troubles, found out about Mobile-signal-boosters.co.uk, we noticed their benefits over other companies. And, eventually, we chose them because we loved their true and detailed descriptions, their attractive prices and a wide range of products we could choose from. We needed a model with wide working range that wouldn’t cost us a fortune, and we found it.

Jennifer Stanton, Darlington

The kit contained everything for the installation.

One of the main advantages of Mobile-signal-boosters.co.uk is that the company provides a user’s manual in the installation kit. Due to the instructions given we were able to set up the repeater on our own without any professional help. Everything is very simple and clear, moreover we didn’t have to purchase any extra details or mountings in order to install the device.

Joel Pilch, Paisley

With the booster installed the signal is strong now!

I purchased a mobile phone signal booster at Mobile-signal-boosters.co.uk in order to improve a poor signal in my café which is located in the underground. Previously, my visitors used to complain about signal issues, but as soon as the device was installed and started to work all problems disappeared. The mobile connection in the café became strong enough, which was immediately noticed by my visitors.

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Fed up with poor mobile phone signal?
We have a solution to your problem!

All you need to do is to get in touch with our qualified managers and you will forget about network problems once and for all!

[email protected], +448000698689 (Sales), Sales Chat