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Dual Band 1800MHz 2100MHz Mobile Network Booster Output Power 20dBm

China Shenzhen Atnj Communication Technology Co., Ltd. certification
China Shenzhen Atnj Communication Technology Co., Ltd. certification
Customer Reviews
Good service and fast delivery

—— Aki Vaattovaara,Sweden

It arrived in time I am very satisfied with the support. The product si in very good conditions. I proved it and works very well.

—— JC Saavedra Libia,Peru

I an very satisfied with the Quality of the product. Also the miss that support me is very kind. she resolved all my doubts perfectly. the product arrived at time as usual.

—— JC Saavedra Libia,Peru

Ms Anne Wang works hard to provide very good service for customers. A pleasure to deal with. Product is as described and good value for money.

—— Lindsay Pettigrew,Australia

Excellent product as describe. Very good seller ! 100% recommended, 100% satisfied ! shipping very fast to Cambodia.

—— loem kom,Cambodia

I have received the repeater in 5/6 days, it is a robust case repeater, it looks nice, and it work perfectly. I suggest this brand repeater. good work

—— andrea cristofanini,Italy

получил товар. качество и параметры сответствуют описанию. продавец молодец!

—— akbar karaev,Uzbekistan

Super fast delivery and superb service/help from supplier. I haven't had a chance to try out the product but I am confident it will work fine. If not, the supplier is really helpful and I am sure he will assist me with futher installation details

—— Attila Kinkopf,United States

I haven't used the product yet but it looks like a quality product. Wave Luo was very helpful, thank you very much!!!!

—— Shephard Mack,South Africa

ATNJ, You got good products with good services, fast and easy to communicate.

—— Borin SIM,Cambodia

Gracias excelente productos y el envío muy rápido


Very technical and very welll organized and professional. Andrew has been a very helpful salesperson

—— gabriel haddad,Venezuela

Excelent product antennas and power.. its good, working very goog thanks ATNJ,

—— CARLOS GREGORIO,United States

Let’s be honest, the quality of my Vodafone mobile signal at home always left much to desire. I just was too lazy to do anything with it. I was absolutely satisfied with the rates and the quality of the signal that I had everywhere and my own house was an exception. However, the coronavirus pandemic changed everything. I started to spend much more

—— Ali , Spain

I bought this booster for my apartment because I was absolutely dissatisfied with the power of GSM and 4G signals that I had there. But now the situation has changed. Thank you for this booster, I finally don’t feel isolated when I stay at home alone.

—— Abdul Mohammed,Germany

I think that’s a very nice solution for those who suffer from problems with voice services and mobile internet and do not want to create any antennas or smth like that themselves. The price is absolutely fair and the quality is amazing.

—— Lena W.,Finland

I was very happy to see the discount that you offered. I know that quite often companies make discounts on goods that are not popular but in this case, I see that the situation is quite opposite. I like that this device is able to improve calls and the internet speed at the same time.

—— Giulia M.,Austria

Thank you! The booster is super cool for a private house. All the rooms are now covered with the improved signal. Now I can’t understand why we haven’t bought it earlier.

—— Nadine Nacht ,Germany

It’s a very cool booster! Thank you, dear team, for your attention to your clients’ needs and the prices that you offer. You are the best, ATNJ

—— Natalia L.,Norway

My 3G and GSM connection used to leave much to desire. But with m new booster I have practically forgotten all these problems. I really like that this device is so compact but so powerful. Thanks, guys, for your amazing work and fast delivery.

—— Goran N. ,Sweden

I can’t understand why I bought this repeater only 2 months ago and not earlier. That’s a very useful device for those who live in a rural area like my family. The improved quality of connection has significantly improved the quality of our life.

—— Lars M. ,United States

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Dual Band 1800MHz 2100MHz Mobile Network Booster Output Power 20dBm

Dual Band 1800MHz 2100MHz Mobile Network Booster Output Power 20dBm
Dual Band 1800MHz 2100MHz Mobile Network Booster Output Power 20dBm Dual Band 1800MHz 2100MHz Mobile Network Booster Output Power 20dBm Dual Band 1800MHz 2100MHz Mobile Network Booster Output Power 20dBm

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Product Details:
Place of Origin: China
Brand Name: ATNJ
Certification: CE,ROHS,CCC,TUV,BV, ISO
Model Number: A021-1800/2100
Payment & Shipping Terms:
Minimum Order Quantity: 1
Price: USD+86---110+kit
Packaging Details: Standard neutral packing,52x21x16cm(1 kit), 6kits as 1 carton(53x49x42cm)
Delivery Time: 3-5 work days
Payment Terms: T/T, Western Union,Paypal,Alibaba,Bank transfering.
Supply Ability: 1000+unit+per day.

Dual Band 1800MHz 2100MHz Mobile Network Booster Output Power 20dBm

Frequency Range: According To Customer's Need,(Band 3)1800MHz -- Uplink Frequency: 1710-1710MHz/Downlink Frequency : 1805-1880MHz (Band 8) 900MHz -- Uplink Frequency: 890-915MHz/Downlink Frequency : 935-960MHz Device Gain: 70dB
Device Output Power: 20dBm Color: Grey And Customized
AGC Intelligent Function: Done,31dB @ 1dB/ Step ALC Intelligent Function: Done
Power Supply: AC 110~220V±20%, 50/60Hz(AC 220V/ DC5V/2A Power Adapter) Certification:: ISO, RoHS, CE, CCC
High Light:

2100MHz Mobile Network Booster


20dBm Mobile Network Booster


20dBm Dual Band Wifi Repeater

Dual Band 1800MHz 2100MHz Mobile Network Booster Output Power 20dBm


Customized Dual Output 1800+2100MHz mobile signal booster 2G 3G 4G cellular amplifier




A mobile phone signal repeater provides the ultimate solution in any area where celluar commnuications cannot work well due to leak of signals.The repeater device features easy installation and operation,build-in door antennaand no interference.it could also improve indoor electromagnetism enviroments,protract cellular battery life and reduce radiation of cellphones.A mobile phone repeater is ideal use for house,home,office use.


Technical Specifications



Frequency Range (Customers to Choose)


890-915MHz, 1710-1785MHz


935-960MHz, 1805-1880MHz

Frequency Bandwidth (3dB Bandwidth)


Automatic gain control (Step Attenuation)

31dB @ 1dB/ Step

Auto Gain Control

20dB Min.

Spurious Emission

≤ -15dBm/30kHz

9kHz~1GHz: ≤ -36dBm/30kHz

1GHz~12.75GHz: ≤ -30dBm/30kHz

Inter-Modulation Attenuation ACPR

≤ -40dBc / 30kHz (measured under rated output power)

In-band Ripple

≤ 3dB



I/O Impedance

50 Ω

Noise Figure

≤ 5dB

System Delay

≤ 5μs

RF Connector(Customers to Choose)


Operating Temperature

Operation: - 10°C ~ + 55°C / Storage: -20°C ~ +60°C

Power Supply

AC 110~220V±20%, 50/60Hz(AC 220V/ DC5V/2A power adapter)


165*130*40 (mm)


≤0.8 kg(Net)

Alarm Monitoring System

Alarm for uplink self-oscillation


Signal Repeater

Dual Band 1800MHz 2100MHz Mobile Network Booster Output Power 20dBm 0Dual Band 1800MHz 2100MHz Mobile Network Booster Output Power 20dBm 1

Dual Band 1800MHz 2100MHz Mobile Network Booster Output Power 20dBm 2




We are manufacturer, and have our own factory.


Q1. Could I get a sample before bulk order?

Yes, we offer the sample for all models but charged.

Q2. What should I do if I don't know about frequency in my country?

Please feel free to contact us with your inquiry, we will find the frequency you need and address your problems.

Q3. Do you accept OEM/ODM order?

Yes, we can customize the brand logo, colors, and frequencies.

Q4.Shipment Date


3-5 business days

<20 pcs

7-15 days

20-200 pcs

15-24 days

>200 pcs



Q5: Delivery Date of the sample by DHL/FedEx


3-5 days

Middle East/Latin American

5-7 days


3-7 days


Q6.Payment Method

T/T, Western Union, Paypal, and Credit Card are available, but we suggest paying by Alibaba Trade Assurance, the most favor, and security method.
*Other methods please contact us with more details.

Q7.  Is it easy to set up your items?
A: Yes. We have a user manual and support technical support 24/7.

Q8. What is your warranty time?
We promise 3-year warranty for all products shipped from us. Man-made sabotage and natural factors are not within the scope of warranty.

Please feel free to contact us if any other questions.



Contact Details
Shenzhen Atnj Communication Technology Co., Ltd.

Contact Person: Emmy Song

Tel: +8618285424282

Send your inquiry directly to us (0 / 3000)

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