Cyber Monday: Last Day of the Biggest Sale 2021 Shop now

Signal Repeater for Cell Phone Nikrans NS-12K-Voice, 3G & 4G

Incompatible with providers of United Kingdom
Indoor coverage: 12000 ft²
2 BandCalls/GSM 3G 4G/LTE
Signal Repeater for Cell Phone Nikrans NS-12K-Voice, 3G & 4G
Kit includes:
  • Nikrans NS-12K-Voice, 3G & 4G booster,
  • indoor antenna + 5 m cable,
  • outdoor antenna + 20 m cable,
  • power supply,
  • manual

Need additional accessories?
Shipping to United Kingdom
or Secure Payment
Delivery time: 3-7 business days
All our signal boosters are shipped by express delivery services like DHL or FedEx that ensures a quick arrival of the ordered booster directly to your home or office address. Shipping usually takes 3-7 business days.
30-DAY Return Policy
Client's satisfaction comes first! You can return or replace your booster set within 30 days from the delivery date.
3-YEAR Warranty
If you have a problem, it's our problem! You will get free repair of the booster and its accessories during 3 years from a purchase.
Lowest Price Guaranteed
If you discover one lower, we'll match it.
Download User Guide
Download Data Sheet

NS-12K-Voice, 3G & 4G Overview

Nikrans NS-12K-Voice, 3G & 4G is an innovative signal repeater for cell phones used to amplify GSM, 3G and 4G LTE signals in the countries of the North and South Americas.

Coverage area

The coverage area of this model is 12 000 ft2, which is suitable for large places like offices, supermarkets, large private houses, etc.

Signal types supported

This Nikrans booster supports 850 MHz and 1900 MHz frequencies. It works with GSM, 4G and 3G networks.

Benefits and features

This model is the best signal amplification solution thanks to:

  • Compact design. This Nikrans booster is compact and convenient, so its black hi-tech casing will suit any interior.
  • Gain control. Special ALC circuit will signal self-oscillation and also impedes interference into the operator´s signal transmission.
  • Multiple phone support. The booster provides an unlimited number of users with amplified signals at a time.
  • Advanced PCB allows future hardware upgrades for even more efficient booster functioning.
  • Wear-resistant casing made of metal with anodic coating makes a booster much more durable.
  • CE and RoHS certificates. The booster doesn´t irradiate its users and environment.

Choose Nikrans NS-12K-Voice, 3G & 4G repeater for cell phone reception and forget about dropped calls and inaccessible areas at home or at work!

Kit contents and setup

After the order you’ll get the gsm repeater in a full kit with antennas and cables so that you won’t need to buy anything extra. You´ll also don’t have to bear any additional expenses on technicians as the installation process is really easy and takes just 15-20 minutes. After you connect the booster with antennas and cables, turn it on and enjoy communication.

The repeater is safe for humans and prolongs your battery life which gets weaker because of permanent signal search.

Operating rules

Nikrans NS-12K-Voice, 3G & 4G cell phonу repeater is what will help you to receive and make calls/sms with pleasure! To get smooth calls and Internet quality, the installation must be performed in accordance with the manual.

If you have any questions don’t hesitate to contact our Technical Experts on the phone, by email or skype. They will also be glad to help with a correct booster choice.

Safety & Certification

Every Nikrans signal booster is confirmed to be 100% safe for its users, mobile devices and the environment. The absolute safety of devices is proven by the international safety certifications CE and RoHS. Read more about certification of Nikrans equipment here.

NS-12K-Voice, 3G & 4G Specification

Coverage: 12000 ft²
Up-link freq: 824 MHz – 849 MHz & 1850 MHz – 1915 MHz
Down-link freq: 869 MHz – 894 MHz & 1930 MHz – 1995 MHz
Up-link Gain: 65 dB
Down-link Gain: 70 dB
Power Output: 17 dBm
Working t °C: -25/+55 °C
Humidity: 5 - 95 %
IP-Code: IP40
Size (mm): 210×150×36 mm
Booster Weight: 2.5 kg
--TRANSLATE THIS(weight)--: 6.5
Power supply: Input AC90~264V,output DC12V/5A
Model Year: 2019

NS-12K-Voice, 3G & 4G FAQ

How do I know that my 3G repeater works?
Is it safe to use a cell phone repeater?
Can I cover several rooms and floors with a cell phone repeater?
What payment methods do you accept?
How to find out the frequency of my GSM, 3G or 4G LTE network?
How do I know what cell phone repeater suits for my country and mobile operator?

View all »

NS-12K-Voice, 3G & 4G Customer Stories

CooTel signal problems used to deprive me of good 3G connection and manages to boost your phone signal.

One of MyAmplifiers managers helped me choose it. I described what kind of CooTel signal problems I had and what type of building I live in, and I got a recommendation and all the other important information that I wanted to know. Another thing that made me happy about this store was the price of the amplifier. When my package arrived, it was in full kit and I did not need to buy any extra details to make it all work.

An irreplaceable device to improve cellular signal GoTalk.

Though there are still some people who don’t use mobile internet (but I think there are not so many such people), I definitely can’t say that I am among this group. I use mobile internet constantly; I need to stay online practically 24/7. I chat with my parents and friends in different mobile messengers, I listen to music online, I send emails.

Our Móvil signal problems are terminated! The best cell booster for home at Myamplifiers!

MyAmplifiers, thank you for your devoted work, for your attention to clients’ needs, for your openness and readiness to help, for your flexibility and high quality of the devices that you offer on your web site! After we bought MA-150C to overcome Móvil GSM and 3G signal issues, our life has changed drastically.

Our mobile internet connection never lets us down now!
Our mobile internet connection never lets us down now!

Edgar Richards (Reading, United Kingdom)

I know that many people buy amplifiers for their flats and houses but we decided to purchase such a device for our office as it was absolutely impossible to work with the quality of Vodafone mobile internet that we used to have!

NS-12K-Voice, 3G & 4G Customer Reviews*

N (United States)
Verified Buyer
Purchased Nikrans NS-12K-Voice, 3G & 4G

All mobile signals have become significantly stronger. I was pleasantly surprised to see the efficiency of this solution.

Modern design and simple installation.

J (Canada)
Verified Buyer
Purchased Nikrans NS-12K-Voice, 3G & 4G

The amplifier demonstrates amazing stability of functioning. I haven’t expected to see such results.

Everything is okay. The device has a display but I do not know how to use the shown data.

O (Canada)
Verified Buyer
Purchased Nikrans NS-12K-Voice, 3G & 4G

Actually, I am not a tech expert and I don't have any other devices of this type to compare this model with them but I believe that my thoughts and my feelings about it can be taken into consideration. Though it was my first experience with a booster it didn't take long to understand how to install it, how to use it and how to get a stable connection. MyAmplifiers has a very good support team and based on my experience I can say that these guys will always find an answer to any question.

I (Australia)
Verified Buyer
Purchased Nikrans NS-12K-Voice, 3G & 4G

A very helpful device to install in your office if you have similar signal issues that we used to suffer from.

Perfect functioning. The installation process may become a challenge for a girl who has no understanding of all these tech things (and I am such a girl!).

A (Venezuela)
Verified Buyer
Purchased Nikrans NS-12K-Voice, 3G & 4G

Thanks for your work guys! The device arrived really fast. Though I was afraid that I wouldn’t manage to deal with the installation, I needed just 20 minutes to install it and switch it on.

M (Venezuela)
Verified Buyer
Purchased Nikrans NS-12K-Voice, 3G & 4G

The device ensures excellent 3G connection at my home! I can even watch videos online from my smartphone.

The booster works perfectly. The installation was rather difficult for me.

W (Canada)
Verified Buyer
Purchased Nikrans NS-12K-Voice, 3G & 4G

NS-12K-Voice, 3G & 4G PRO is so cool! It has helped us to improve the quality of cellular connection in our motel. It was important for us to do it to ensure the best client experience for our guests.

M (United States)
Verified Buyer
Purchased Nikrans NS-12K-Voice, 3G & 4G

I ordered this booster for my parents. They’ve been using it for a couple of months already and they are absolutely happy (as well as I am).

Easy usage and installation, high capacities, excellent client support. I haven’t noticed any disadvantages. If I had found any problems, I would have already written about them.

T (United States)
Verified Buyer
Purchased Nikrans NS-12K-Voice, 3G & 4G

Thanks for this awesome device! I work from home, so, it’ extremely important for me to have a stable internet connection. Without this booster, it was a real problem for me to check my email box from my smartphone. Now I even can make video calls!

E (Canada)
Verified Buyer
Purchased Nikrans NS-12K-Voice, 3G & 4G

I ordered NS-12K-Voice, 3G & 4G PRO three months ago and I am fully satisfied with my choice. Earlier I hardly ever could make a call, now I always have 4-5 bars and enjoy the stable connection. I’ve already recommended this device to all my neighbors who have similar problems. I want to express my special gratitude to Alex who provided me with excellent professional advice regarding the installation process. So, if you also have any doubts on how to install it, I think that the managers will help you without any problems;)

L (Brazil)
Verified Buyer
Purchased Nikrans NS-12K-Voice, 3G & 4G

Thanks for your work, guys! I am so happy that today there are companies like yours. Though I am always a little bit afraid to make purchases online, especially when it comes to rather expensive goods like this one, everything was perfect. There were no problems with reaching the team, the managers were always ready to answer all my questions and it made me believe them. So, I ordered a booster and began waiting. Just in 10 days, I received my booster. Thank you, I’ve been using it for 6 weeks and I haven’t regretted buying it.

M (Peru)
Verified Buyer
Purchased Nikrans NS-12K-Voice, 3G & 4G

I bought this device for my restaurant as our guests used to complain quite often that they couldn’t use their mobile phones while visiting our restaurant. And of course, our team also had a lot of problems due to the instability of our connection. I decided that buying a booster could be a nice idea. To tell the truth, at first, I wanted to buy a booster in an ordinary offline shop but the prices there were crazy. That’s why I ordered a device on this website and I am confident that it was the right solution.

A (Mexico)
Verified Buyer
Purchased Nikrans NS-12K-Voice, 3G & 4G

We have installed NS-12K-Voice, 3G & 4G PRO at our office. And it practically saved our business. Maybe it sounds quite strange but our office building is situated in the area that is badly covered by all operators. So, all our employees regardless of their operator were obliged to suffer from an unstable connection. Quite often our clients and partners couldn’t reach us and as a result, we lost a number of contracts. One guy from our team offered to look for a booster and even recommended this website as he had already bought a similar device for his home here. So, we easily managed to find an appropriate model via a search form and placed an order. The device was delivered in two weeks. I think it’s rather fast. After we installed this booster, it was impossible not to notice the difference. Thanks! We are happy.

J (Argentina)
Verified Buyer
Purchased Nikrans NS-12K-Voice, 3G & 4G

It was pure luck that I found this wonderful website! We live in the suburbs of Buenos Aires and as well as many of our neighbors we used to suffer from an awful cell signal. As a result, we couldn’t make and receive calls when we were at home. The last drop was when our 8-year old daughter stayed at home alone and couldn’t call us when she felt sick. So, I decided that I needed to look for a solution. At first, I thought that it could be enough just to buy more powerful smartphones but then my friend explained to me that it wouldn’t help us. He recommended me to search for a reliable booster. NS-12K-Voice, 3G & 4G PRO seemed to be a cool variant and it really turned out to be so. Thanks for this booster! Now we always have a very stable connection at home.

* The reviews are originally posted in authors' native languages. However for customers' convenience we translate them into major European languages.

View all

Have read till the end? Get a gift!

Here is your 15€ for any booster at Myamplifiers.

Your Discount Code: GOAL

Click on coupon code to apply it.

We have 100+ models. Find yours.

Get comfortable voice and Internet connection in your house, working place or car.

1. Select country

2. Select coverage

3. Click your provider icon ...

EE signal repeaters O2 signal repeaters Vodafone signal repeaters Three signal repeaters BT Mobile signal repeaters Anywhere signal repeaters Asda signal repeaters CTExcel signal repeaters FreedomPop signal repeaters giffgaff signal repeaters iD Mobile signal repeaters Lebara signal repeaters Lycamobile signal repeaters Plusnet signal repeaters Tesco Mobile signal repeaters Vectone Mobile signal repeaters

4. ... and get results

Search »

Have a problem with cell phone signal? Let us take care of it for you

Your comfortable and stable mobile connection is only in one click away. Just let us know about your problem and get professional help

or simply contact us:, +(44)8000485044 (Sales), +(44)2045770585 (After-sales support), Sales Chat


Please, enter your email to get a direct download link.

signal repeater for cell phone nikrans ns-12k-voice, 3g & 4g

This booster has been bought for United Kingdom 3 times today.

Request a call