Name: Signal Hero Max 300 Pro Booster
Brand: DoCall Boosters
Price: 965 GBP
Availability: InStock
Rating: 4.7 (32 reviews)

Signal Hero Max 300 Pro

Overview

Technical Sheet
NETWORK COVERAGE

Vodafone, VOXI, Lebara, Asda Mobile, Talkmobile: Band 20, Band 8, Band 3 , Band 1 and Band 7 - 800/900/1800/2100/2600 Mhz
O2, giffgaff, Tesco Mobile, Sky Mobile, Lycamobile: Band 20, Band 8, Band 3 , Band 1 and Band 7 - 800/900/1800/2100/2600 Mhz
EE , BT Mobile, Plusnet, 1pMobile : Band 20, Band 8, Band 3 , Band 1 and Band 7 - 800/900/1800/2100/2600 Mhz
Three , SMARTY, iD Mobile : Band 20, Band 8, Band 3 , Band 1 and Band 7 - 800/900/1800/2100/2600 Mhz
MAX GAIN

72 decibels (dB) amplification
IMPEDANCE

50 Ohm
POWER

DC 12V/AC 220V
BOOSTER WEIGHT

≤2.5 kg
BOOSTER DIMENSIONS

250 × 230 × 50 mm

FAQ

Why Signal Hero mobile signal boosters is the best solution for poor reception?

Signal Hero mobile signal booster is the only working solution if you have a weak signal and dead zones. It helps to improve signal strength so you can access the internet more quickly, and stream videos without buffering.

With our booster you can make and receive calls without interruption, ensuring you're always in touch with your family and friends.

In general, the booster catches the signals from the nearest cell tower in the area by the external antenna which is included in the kit, then it sends the signal to the booster box. The box amplifies the signals, ensuring reliable coverage even in areas with poor signal strength, and the internal antenna spreads the signals inside the closed area.
Please, help me to find the best booster. How do I know which one?
If you want to find the best booster for you there are 2 easy options:
- Use our Booster Finder Wizard to find the best booster based on your needs.
- If you're still having trouble finding the right booster after using the Wizard, contact our technical support team via chat or phone. They'll be happy to assist you in finding the best solution.
What makes the Signal Hero different?

1. At Signal Hero, we are committed to providing high-quality boosters at unbeatable prices.
2. Since 2010, we've been dedicated to improving cellular signals with our specialized boosters, putting our CUSTOMERS FIRST every step of the way.
3. Our boosters fix more than the signal. Signal Hero customers enjoy fewer dropped calls, better voice quality, faster internet speeds, and improved video streaming.
4. In addition, we provide peace of mind with our industry-leading 24/7 after-sale service:
- Lifetime Support
- 3-Year Warranty
- Installation Services (for enterprise solutions)
5. And if it’s not a perfect solution for you, we’ll refund your purchase or replace it. No hard feelings.
Does this need installation? Can I set this up myself?

Installing our boosters is easy - in fact, 98% of our customers do it themselves. The device is plug-and-play, so all you need to do is attach the units with cables and mount the antennas. We provide simple installation guides and videos to help you along the way.

Moreover, we offer technical aftersales support after the delivery of your device, so you can have peace of mind knowing we're here to help.

Reviews:

4.7

32 customer reviews

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Reviews (32) Questions (0)

Elliot D. Verified Customer2026/02/16

The manual control option has given me great flexibility.

Jonathan D. Verified Customer2026/02/06

Bought one and installed it pretty quickly. Straight up to five bars as it promised.

Riley F. Verified Customer2026/01/27

The description for this product is very accurate, works as described

Odri Black Verified Customer2026/01/14

It promises easy installation but it's nothing like that. Installing this unit almost took me out. Getting the best spot for the outdoor antennae was a wild hunt! I had to call somebody to do it eventually because I had grown so fed up. The signal is much stronger so that's a plus. I can say it is worth the struggle if it remains that way.

Edward H. Verified Customer2026/01/02

In today's world it's so important to stay in touch. I need to be contactable 24/7 for my job so having a reliable signal at home couldn't be more important. This handy gadget has meant that I'm never out of reach.

Signal Hero Max 300 Pro

Benefits and Features:

Overview

FAQ

Reviews: