Key Specifications
Prime Delivery • 30-Day ReturnsHiBoost Cell Phone Booster for Multiroom, Boost Cellular Signal up to 10,000 sq ft for All U.S. Carriers | Cell Phone Signal Boosters with 2 Inside Antennas Set for Homes & Offices 2-Story
The HiBoost 15K SL is a high-performance cell phone signal booster engineered to eliminate weak signal problems in large homes, multi-story offices, and commercial spaces. With a maximum gain of 70 dB, this booster enhances 4G LTE and 5G DSS signals for all major U.S. carriers—including Verizon, AT&T, T-Mobile, Sprint, Straight Talk, and U.S. Cellular—providing reliable coverage of up to 10,000 sq ft. Equipped with two indoor antennas and advanced Automatic Gain Control (AGC) technology, the 15K SL ensures seamless connectivity across multiple rooms and floors. The included SignalSupervisor App and LCD touchscreen simplify installation and allow real-time monitoring, delivering stable voice, text, and data performance in challenging environments such as basements, metal buildings, or multi-level homes.
Key Features
The HiBoost 15K SL is a high-performance cell phone signal booster engineered to eliminate weak signal problems in large homes, multi-story offices, and commercial spaces. With a maximum gain of 70 dB, this booster enhances 4G LTE and 5G DSS signals for all major U.S. carriers—including Verizon, AT&T, T-Mobile, Sprint, Straight Talk, and U.S. Cellular—providing reliable coverage of up to 10,000 sq ft. Equipped with two indoor antennas and advanced Automatic Gain Control (AGC) technology, the 15K SL ensures seamless connectivity across multiple rooms and floors. The included SignalSupervisor App and LCD touchscreen simplify installation and allow real-time monitoring, delivering stable voice, text, and data performance in challenging environments such as basements, metal buildings, or multi-level homes.
Key Considerations
Before purchasing the HiBoost 15K SL, consider the following: ✔ Outdoor Signal Strength A minimum of 1 bar outdoors is required. The stronger the outdoor signal, the greater the indoor coverage. ✔ Multiroom and Multi-Story Coverage With coverage up to 10,000 sq ft, the booster is ideal for multi-room homes, offices, and shops. Two indoor antennas help ensure even signal distribution across multiple floors. ✔ Carrier Compatibility Supports all major U.S. carriers and 5G DSS signals in existing 4G bands. Check that your carrier has deployed 5G in your area if 5G connectivity is required. ✔ High-Quality Cabling Includes upgraded low-loss 400 coaxial cables to reduce signal loss and maintain optimal performance in weak signal areas. ✔ Smart Gain Control AGC automatically adjusts amplification levels for consistent, stable signals while preventing overload. ✔ App-Assisted Installation The SignalSupervisor App guides installation, monitors signal strength, and provides remote technical support for easy setup.
The HiBoost 15K SL stands out due to its combination of high gain, dual indoor antennas, and smart amplification technology. With 70 dB maximum gain, it effectively boosts weak outdoor signals to cover up to 10,000 sq ft, making it ideal for large, multi-story homes, offices, or commercial buildings.
Its multi-carrier support ensures all U.S. networks—including 5G DSS—receive reliable amplification, making it suitable for households with multiple devices and mixed carriers. The dual indoor antenna setup guarantees even coverage throughout different floors and rooms.
Installation is straightforward, aided by the SignalSupervisor App and LCD touchscreen. Users can monitor signal levels, optimize antenna placement, and adjust settings without professional help.
Additionally, the high-quality 400 coaxial cables minimize transmission loss, maintaining strong performance even in challenging locations with weak outdoor signals. The AGC system intelligently regulates gain, ensuring consistent voice and data quality while protecting the equipment.
With FCC and IC certification, the HiBoost 15K SL provides a reliable, future-proof solution for large homes and offices that require dependable cellular coverage.
These factors represent the most critical aspects that will impact your satisfaction with this product.
Customer Reviews
I purchased the HiBoost 10K Smart Link to improve our spotty AT&T signal at home, and it has exceeded my expectations in every way. From the moment I opened the box, the installation process was smooth and straightforward. The kit came with very detailed instructions, which made it simple even for someone like me who isn’t especially tech-savvy.
First, I have very good 5G coverage in my area. My problem is that I have an office and entertainment space in my basement and the signal isn't getting through there very well and I frequently have to resend text and pictures. My goal is to get better signal from outside into my basement. I feel like I achieved that goal.