Cell Phone Signal Booster for Home T-Mobile, AT&T & US Cellular, Band 12/17/4/66 Cellular Amplifier, Boost High-Speed

Key features

• 🚀ULTRA-FAST DUAL-BAND BOOSTING: Built with Band 12/17/4/66 for dual-scenario signal enhancement. Band 12/17 offers long-range wide-area coverage, penetrating foliage and outer walls to stabilize signals in rural houses, cabins and remote suburbs. Band 66/4 delivers powerful urban penetration through high-rises and metal buildings. DSS 5G cuts dropped calls, improves voice quality and extends phone battery life, restoring cellular speed inside thick-walled residences and metal buildings.
• 🏠VERSATILE COVERAGE FOR URBAN & RURAL: High-gain cell booster easily penetrates metal roofs, low-E glass and modern construction materials that block cellular signals, covering up to 3,000 sq. ft. Perfect for urban condos, home and suburban basements. T-Mobile, US Cellular, Mint Mobile & Google Fi users enjoy rapid Band 66 urban 4G/5G and reliable Band 12 rural signal ; AT&T & Verizon shoppers get smooth high-speed urban data.
• 🏙️DUAL OUTPUT PORTS FOR MULTI-ROOM COVERAGE: Unique built-in dual signal output ports enable direct connection of an extra indoor antenna to cover additional rooms or upper floors without purchasing extra splitters or couplers (second indoor antenna sold separately). It eliminates rural dead zones and weak signal in metal structures, offering up to 6,000 sq. ft of total usable coverage
• 🛡️SMART ALC PROTECTION & REAL-TIME DIAGNOSTICS: Equipped with Advanced Automatic Level Control to automatically adjust output power, avoid oscillation and prevent interference with local cell towers. The built-in signal lights displays real-time operating status for consistent 24/7 stable connection. Indoor coverage range changes based on outdoor signal strength: 500 sq. ft at 1–2 bar, 1,500 sq. ft at 3–4 bar, 3,000 sq. ft at full 5 bar (usable exterior signal is required for amplification)
• 💡Important Pre-Purchase Note: This booster only amplifies Band 12 and Band 66 (Band 4 compatible extension) for T-Mobile, AT&T, US Cellular, Mint Mobile and Google Fi. It cannot support Verizon Band 13, and is not ideal for rural AT&T/Verizon users relying solely on Band 13 voice service. Please check your local tower’s active bands via Field Test Mode before placing your order to guarantee full compatibility
• 🛠️FCC CERTIFIED DIY INSTALLATION & PURCHASE REMINDER: Fully FCC certified with no service fees and no Wi-Fi required. The complete kit supports a simple 3-step setup that takes less than 30 minutes to finish, and it cuts phone power consumption by stopping constant signal searching. Backed by a 3-year warranty and lifetime professional technical support.

Free shipping included. 30-day hassle-free returns.