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Item specifics
  • Model Number: K2B081873PLW
  • Booster: 850/1800MHz Repeater
  • Gain: 70db
  • Signal Amplifier: Cell Phone Amplifier
  • Band: Dual Band
  • Cable Color: White/Black
  • Place of Origin: Guangdong, China (Mainland)
  • is_customized: Yes
Product Description

70db High Gain 850MHz 1800MHz Dual Band Cellular Phone Signal Booster Repeater 2 indoor+1 outdoor Antenna Kits



This Dual Band GSM CDMA 3G 850/1800MHz Cell Phone Signal Booster mainly use for home, office, warehouse,meeting room, basement, park, hotel etc.It works with worldwide 850MHz and DCS 1800MHz Networks, This device is strong to boost multiple users with maximum power, is cost effective solution with weak outside signal.


1. Small Size, Light Weight, Beautiful Repeater

2. Low Operating Temperature

3. High-Gain Linear Power

4.Ultra-Low Noise Receiver

5. Full-Duplex Communication Mode

6.Dual Band 850/1800MHz 70dB

7.CE Certificated

8,Support OEM Order


1. 30 Days Customer Satisfaction

2.Three Months Free Replacement

3. 2 Years Manufacturer Warranty

4.Fast handle time & Free Shipping

5.Support Wholesales,More Units More Discount






Frequency Range 850MHz



Frequency Range 1800MHz



Input Power Range

-70 ~ - 40dBm

Max Output Power



Max Gain



Characteristic  Impedance




Tx/Rx lsolation


Noise figure


Group Delay


Pass  Band  Ripple

6.0dB p-p

Main  Power

AC 100-220V(used AC/DC 12V 2A)

Cabinet  Style

In-door wall mount type

























Package include: 

1 * 70dB Dual band Repeater

2 * 9dBi Indoor Panel Antenna with 5 Meters Low Loss Cable

1 * 8dBi Outdoor LPDA Antenna with 10 Meters Low Loss Cable

4 * Screws for Mounting

1 * AC Adapter

1 * 2 way power splitter

1 * English User Manual

The cable has white and black for option.

Steps that describe the work of Repeater.

1) The outside antenna receives the signal from the nearest mobile base station.

2) The outside antenna sends the received signal through the coax cable to the installed Repeater.

3) The Repeater accepts the low signal and improves it.

4) The improved signal goes to the inside antenna through the connection coax cable.

5) The inside antenna send the improved good signal to your mobile phone.



payment 1.jpg


1.We accept Alipay, West Union, TT. All major credit cards are accepted through secure payment processor ESCROW.

2. Payment must be made within 3 days of order.

3. If you can\'t check out immediately after auction close, please wait for a few minutes and retry Payments must be completed within 3 days.2) Payment must be made within 3 days of order.



2.We Accep Dropshipping.Please confirm your address is right.

3. Orders processed timely after the payment verification.
4. SERVICE TRANSIT TIME is provided by the carrier and excludes weekends and holidays.Transit times may vary, particularly
during the holiday season.
5. If you have not received your shipment within 30 days from payment, please contact us. We will track the shipment and get back to you as soon as possible with a reply. Our goal is customer satisfaction!
6. Our shipping time is about 2-3 working days after get payment.
7. Delivery Time:




1.We are not responsible for any custom duty or import tax.Buyer need pay by themselves.

2.We only can help buyer to reduce tax throught write low value on customs invoive.

Thank you for your understanding.

3.Because of customs tax\'s problem,parcel is returned,buyer need pay all charge including round-trip freight.

1. You have 7 days to contact us and 30 days to return it from the date it was received. If this item is in your possession more than 7 days, it is considered used and WE WILL NOT ISSUE YOU A REFUND OR REPLACEMENT. There are NO EXCEPTIONS! Shipping cost is bear by both seller and buyer in half.
2. All returned items MUST BE in the original packaging and you MUST PROVIDE us with the shipping tracking number, specific reason for the return, and your po#.
3. We will refund YOUR FULL WINNING BID AMOUNT, upon receipt of the item in its original condition and packaging with all components and accessories included, AFTER BOTH Buyer and Seller cancel the transaction from aliexpress. OR, you may choose to have a replacement.  
4. We will bear all the shipping cost if the product(s) is (are) not as advertised.

1. 12 months Manufacturer`s limited Warranty for defective items (excluding items damaged and/or misused after receipt). Accessories come with a 3-month warranty.
2. Defective items MUST BE reported and returned within the warranty period (and in the original packaging, if possible). You must tell us what the defect is and give us your order number. WE DO NOT REPAIR OR REPLACE ITEMS WITH AN EXPIRED WARRANTY.
You agree to all of the above-listed policies upon ordering on aliexpress!

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It is impossible to address issues if we do not know about them!
Packaging Details
  • Unit Type: Set
  • Package Weight: 4.5kg (9.92lb.)
  • Package Size: 20cm x 15cm x 10cm (7.87in x 5.91in x 3.94in)
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Packaging Details
  • Unit Type: Set
  • Package Weight: 4.5kg (9.92lb.)
  • Package Size: 20cm x 15cm x 10cm (7.87in x 5.91in x 3.94in)
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