---
product_id: 99018494
title: ""
brand: "surecall"
price: "₩1192733"
currency: KRW
in_stock: true
reviews_count: 8
url: https://www.desertcart.kr/products/99018494-
store_origin: KR
region: South Korea
---

# Covers up to 3500 sq ft indoor Boosts 5G/4G LTE signal DIY install with app guidance 

**Brand:** surecall
**Price:** ₩1192733
**Availability:** ✅ In Stock

## Summary

> 📡 Stay connected, stay ahead — signal that works as hard as you do!

## Quick Answers

- **What is this?**  by surecall
- **How much does it cost?** ₩1192733 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/99018494-)

## Best For

- surecall enthusiasts

## Why This Product

- Trusted surecall brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Multi-Device Mastery:** Supports multiple users and devices simultaneously for crystal-clear calls, texts, and blazing-fast data streaming.
- • **Proudly American & Reliable:** FCC-approved, designed and assembled in the USA, backed by a 3-year warranty and lifetime US-based support.
- • **Unstoppable Signal Strength:** Eliminate dropped calls with powerful 9 dB Yagi antenna gain boosting 5G & 4G LTE across all major US carriers.
- • **Expansive Coverage Footprint:** Seamlessly cover up to 3,500 sq ft of home or office space—perfect for your dynamic work-from-home lifestyle.
- • **Effortless Setup with Smart App:** Install like a pro in minutes using the free SureCall app that guides antenna aiming and optimizes performance.

## Overview

The SureCall Flare 3.0 is a premium FCC-approved cell phone signal booster designed for homes and offices up to 3,500 sq ft. Featuring a high-gain Yagi directional antenna, it amplifies weak 5G and 4G LTE signals from all major US carriers, ensuring reliable calls, texts, and data for multiple devices simultaneously. Easy DIY installation is supported by a free app for optimal antenna positioning. Built and supported in the USA, it offers a 3-year warranty and lifetime customer service, making it the go-to solution for professionals demanding seamless connectivity.

## Description

Boost your cell signal in your home with the SureCall Flare 3.0 The SureCall Flare 3.0 4G booster kit is an easy-to-use cell phone signal booster for home. It boosts 4G, LTE, and 3G signal speed for all carriers and phones. Bundled with a powerful yagi directional antenna, you get an extra 9 dB of gain compared to the normal Flare. The Surecall Flare 3.0 cellular signal booster combines the booster and indoor antenna to streamline the system's design for easier installation and an attractive, low-profile appearance. The stylish one-piece base unit is designed to be placed on an open tabletop or shelf for clearer and more reliable voice and data performance. The two pieces are connected via the included 50ft premium RG-6 coaxial cable. Kit includes a yagi directional antenna that reaches distant cell towers. The Flare 3.0 4G signal booster uses a yagi directional antenna to provide more gain to your amplifier. With strong outside signal, you can expect up to 3,000 sq ft of indoor coverage. With weaker outside signal, that coverage may decrease to around 1500 sq ft. The Surecall Flare 3.0 cell phone signal repeater works with all carriers in the United States and Canada: AT&T, T-Mobile, Verizon, Sprint, Straight Talk, Trackphone and U.S. Cellular. Get your Flare 3.0 cellular booster today for the most stylish, simplest solution to solve your poor signal issues.

## Features

- RELIABLE CELL SIGNAL FOR SMALL HOMES & ROOMS -- Stop dropped calls and improve your cellular connection. Flare 3.0 boosts weak 5G & 4G LTE signal for more reliable calls, texts, and data. Works with all major U.S. carriers including AT&T, T-Mobile, Verizon, and more.
- REALISTIC COVERAGE BASED ON OUTDOOR SIGNAL -- Coverage depends on signal strength where the outside antenna is placed: 1–2 bars outside → up to ~500 sq ft inside 3–4 bars outside → up to ~1,500 sq ft 5 bars outside → up to ~3,500 sq ft Note: Booster requires existing outdoor signal to work.
- CLEARER CALLS & FASTER DATA ON ALL DEVICES -- Improves voice, text, and data for multiple users at once—supporting phones, tablets, and hotspots for smoother streaming and browsing.
- EASY DIY INSTALL WITH APP GUIDANCE -- Includes free SureCall app (iOS/Android) to help you aim the antenna, optimize setup, and maximize performance in minutes. -- All-in-one kit. No Monthly Fees!
- BUILT IN THE USA -- Designed, assembled, and tested in the USA. FCC-approved, backed by a 3-year warranty and lifetime U.S.-based customer support.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Asin | B07KBKYV1C |
| Best Sellers Rank | #22,192 in Cell Phones & Accessories (See Top 100 in Cell Phones & Accessories) #22 in Cell Phone Signal Boosters |
| Brand | SureCall |
| Built In Media | Coax Cable, Externa Antenna, Flare 3.0 Signal Booster, Power Cord, User Manual |
| Color | Flare 3.0 w/ Directional Antenna |
| Compatible Devices | Smartphone |
| Connector Type | RJ45 or USB Type A |
| Customer Reviews | 3.7 3.7 out of 5 stars (764) 3.7 out of 5 stars |
| Frequency Bands Supported | 698-716 MHz, 728-746 MHz, 746-757 MHz, 776-787 MHz, 824-849 MHz, 869-894 MHz, 1850-1910 MHz, 1930-1990 MHz, 1910-1915 MHz, 1990-1995 MHz, 1710-1755 MHz, 2110-2155 MHz |
| Global Trade Identification Number | 00858507006922 |
| Item Dimensions D X W X H | 9"D x 18"W x 10"H |
| Item Type Name | SureCall Flare 3.0 Cellphone Signal Booster |
| Item Weight | 7.9 Pounds |
| Manufacturer | Sure Call |
| Mfr Part Number | SC-Flare3US |
| Model Number | SC-Flare3US |
| Range | 2500.0, 3500.0 |
| Smart Home Compatibility | Not Smart Home Compatible |
| Special Features | 2XP technology, 4G/5G Compatible, Works with all U.S. cellular carriers. |
| Unit Count | 1.0 Count |
| Upc | 858507006922 |
| Warranty Description | 3 year product warranty |
| Wireless Compability | 802.11ac |

## Product Details

- **Brand:** SureCall
- **Color:** Flare 3.0 w/ Directional Antenna
- **Included Components:** Coax Cable, Externa Antenna, Flare 3.0 Signal Booster, Power Cord, User Manual
- **Special Feature:** 2XP technology, 4G/5G Compatible, Works with all U.S. cellular carriers.
- **Wireless Communication Standard:** 802.11ac

## Images

![ - Image 1](https://m.media-amazon.com/images/I/61ByEybnl2L.jpg)

## Available Options

This product comes in different **Color** options.

## Questions & Answers

**Q: Can i connect a version jet pack (hotspot) to this? can i also connect att cell phones to same booster and get better signal and service?**
A: It isn't brand specific, and it's not really a matter of having to "connect" to it. It just picks up the existing cell signal outside your home, brings it indoors via a cable, and boosts the signal. We have seen it help our Verizon Jetpack (hotspot), our Verizon phones, and ATT and T-Mobile phones of family members. It isn't perfect because it still depends on the signal from a cell tower somewhere (it will only work if you have some cell signal to boost.) Our signal varies and we still lose signal altogether sometimes, but overall it has helped.

**Q: I have little to no signal will this work?**
A: Depends on what you call no signal. If truly NO signal, then no. The yagi antenna mounted on a tower (above roof line) will do a pretty good job. I am pointed to a tower about 12 miles away and use 100 ft RG6 and had to install attenuators to keep from overloading the unit. My phone prior to using SureCall showed 1 bar and continually dropped calls so I called that low to no signal. It boosted my signal a lot. I call that a great job. Good luck.

**Q: Has anyone used this to boost T-mobile Home Internet?**
A: I used to boost Verizon-got my phone to 3 bars—guy who installed had AT&T and instantly got 5 bars—seems to depend which towers are closer to you. However-I couldn’t be happier. I can watch on demand, Netflix etc and phone calls rarely drop. It took quite awhile with 1 person on roof—another running to check signal to find the perfect spot

**Q: Will this boost the signal for multiple providers at the same time?**
A: Yes this will boost all providers at the same time

## Customer Reviews

### ⭐⭐⭐⭐⭐ It works! Life is better now.
*by  on Reviewed in the United States April 25, 2020*

Having recently come to a very remote area of Northern Wisconsin from the "big city", I was losing my mind with no cable or internet and only spotty cellular data access. My Verizon coverage was zilch in the house and between slim and none outdoors unless I was standing in just the right spot, on one leg, with the planets aligned (even then, slim was VERY slim, if any). My mom's AT&T service was solid outdoors, decent at one end of our big old 2-story farmhouse, and spotty at the other end. So I decided to try a booster. After reading reviews and learning more about "gain" and what the "dB" measures really mean than I thought I'd ever need or want to know, I purchased the SureCall Flare 3.0.First, you need to know that my Verizon coverage remains abysmal. When they say this product boosts a signal but cannot create signal from nothing, they were just being 100% honest. Make sure you run a signal test on your phone or can at least make a phone call with your particular carrier outside before investing in this or any product. I did get the Yagi directional antenna (not the omni), but aside from Verizon installing a tower right in my backyard, I don't think any product would get me out of this dead zone.So why did I give this product 5 stars? It did just what it was supposed to for my mom's AT&T coverage and was quite easy to install, even for a person with minimal tech savvy . We now have a robust AT&T signal throughout the house, texts are sent and received quickly, websites load in a blink, and we've said goodbye to interrupted streaming and the dreaded buffering. This also means mom can launch a stronger hotspot which has made my life better, too.Other tips: If you only receive a one or two-page manual in the box, I suggest you read through the full PDF manual on SureCall's website. They offer a much better explanation of the LED lights on the booster and what they really mean. Just the green light is optimal / best function, yellow flashing lights on either side mean it is working, and working ok, just introducing some additional system checks. Any red lights are the ones that require further action. This was confusing in the short-form manual I received in the box. SureCall also has useful videos.For mounting the outside antenna - think about where you're most likely to install this and order or get a mounting pole that is not included. Yes, you do get two u-bolt clamps and a bracket in the box, but if I hadn't repurposed an old satellite dish pole mount, I would have had to order or get a pole. I also had success mounting the antenna roughly 12 feet off the ground on the side of the house as I didn't have a safe way of getting up on our steep, two-story roof on my own.

### ⭐⭐⭐⭐⭐ Will improve an existing weak cell signal.
*by  on Reviewed in the United States June 30, 2025*

Why did you pick this product vs others?:I bought this for my cabin in NH. We get a single bar as measured by our cell phones. We could make and get calls, but audio quality poor and web browsing was painful, with many pages freezing before displaying. I didn't expect miracles, but with this product I can at least now surf the web without swearing and can reliably make and take phone calls. It was pretty easy to install (I also bought a pole to mount on the wall to extend above the apex of my roof). It was easy to install if you are moderately handy with common tools and can climb a ladder. To orient it properly, I downloaded the free OpenSignal app. They have a simple compass that points to the closest cell tower for your service provider. Before making the installation permanent, I used the SureCall app to measure signal strength, adjusting the antenna 5-10 degrees +/-. They provide 50' of coax, which was perfect for me, but for you will depend on the dimensions of your home or apartment. If you need more, you can get an extension coax. They say that the vertical distance between antenna and modem should be at least 25'. Mine was about 18'-20' and the app reported it was "good". I can imagine apartment dwellers may find it difficult to get this much vertical distance.

### ⭐ DOES NOT WORK - I HAVE VERIZON AND SAMSUNG
*by  on Reviewed in the United States June 1, 2026*

I'm an engineer. I did everything that the manual said. NO matter how far the separation the yellow light was always on...I would say easily 50 to 60 feet away. One end of the house was the antenna and on the far end of the house with a second cable went well into the garage At least 15 feet vertical separation followed by 50 feet horizontal separation. Yellow light always stayed on. Ran speed tests. Never better and sometimes worse. Had to lay the phone on the antenna to maybe get some improvement...could not tell. The app shows green, but that according to AI is the bluetooth signal, not the cell tower...dishonest. Great, phone is connected, but get absolutely no improvement. Tested in good and bad weather (I said I was an engineer). Tried aluminum foil at the antennae and at the base unit to block other signals...often turned red signal in that case. Bottom line - no improvement. Gets into bands too (another dishonesty here) in that my carrier is verizon and there apparently is no way to keep it on the Verizon band so the phones will just bounce around incompatible with this device. Long story and I am too frustrated to do anything else. Bottom line - NO improvement in download and upload, often worse. Get 10 inches away from the base unit and my phone is back to the state it is in without this at all. Something is wrong with this product and the way it is being implemented and marketed. I spent ALOT of hours trying to make it work. It does not and will not work in my house. I have Verizon and a Samsung phone. I believe this product (not absolutely) that this is incompatible with these two products. I'll save the AI chat on this which provided some additional insights why it was not working.

## Frequently Bought Together

- SureCall Flare 3.0 Cell Phone Signal Booster for Home & Office up to 3500 sq ft, Boosts 5G/4G LTE, Yagi Outdoor Antenna, Multi-User, Verizon AT&T Sprint T-Mobile, FCC Approved, USA Company
- SureCall J-Bar Outdoor Antenna Mounting Pole, Adjustable 20-Inch Outside J-Pipe Mount
- SureCall Lightning Protector for Rg6 Or Rg11 Cable - Silver

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*Product available on Desertcart South Korea*
*Store origin: KR*
*Last updated: 2026-06-24*