AT&T Cell Phone Signal Booster Band 12/17 Cell Phone Booster for Home 4G LTE 5G Signal Amplifier Repeater Cellular Signal Booster, Boost Voice and Data Signal Dead Zones Up to 3,000 Sq Ft

Revitalize Your Mobile Connection: High-Gain 5G/4G LTE Signal Booster Stop struggling with dropped calls, buffering videos, and slow uploads. Our Cell Phone Signal Booster is engineered to amplify weak signals for 5G phones and 4G LTE devices, delivering crystal-clear voice quality, instant text messaging, and blazing-fast data speeds. By stabilizing your connection, it also significantly extends your device's battery life by preventing your phone from constantly searching for a signal.Key Features: Smart Automatic Gain Control (AGC): Equipped with intelligent AGC technology, the booster automatically adjusts its power output to ensure optimal performance without interference, adapting to changing signal conditions in real-time. Long-Range Directional Antenna: Includes a high-gain Directional Yagi Antenna that precisely targets the nearest cell tower. It can capture weak signals from up to 30 miles away and amplify them by up to 100x (65dB), penetrating walls and obstacles to cover your entire space. Multi-User Support: Simultaneously boosts signals for multiple users and devices (smartphones, tablets, hotspots) across all major US carriers including AT&T, Cricket, US Cellular, and operating on Band 12/17. Compatible Devices All 5G/4G/LTE phones, tablets, and IoT devices requiring SIM cards ⚠️ Crucial Installation & Compatibility Guide (Please Read Before Buying) To ensure this booster works perfectly for you, please note the following: Signal Requirement: This device amplifies existing signals; it does not create them. You must have at least 1-2 bars of signal outside your home/office for the booster to work. If there is zero signal outdoors, this product will not function. Band Verification: This booster ONLY supports Band 12 and Band 17 (700MHz). Please verify that your carrier uses these bands in your area before purchasing. (Compatible with AT&T, Cricket, etc. Check your phone's field test mode or use apps like LTE Discovery to confirm). Antenna Placement: For maximum coverage, install the outdoor directional antenna on the roof or wall facing the direction of the strongest outdoor signal. Proper alignment is key to capturing the weak signal effectively.🔄 How It Works: The Signal Loop Our system creates a seamless bridge between your device and the cell tower: Capture: The outdoor directional antenna captures the weak signal from the distant cell tower. Transfer: The signal travels via low-loss coaxial cable to the booster unit. Amplify: The booster intelligently amplifies the signal (up to 65dB) using AGC technology. Broadcast: The amplified signal is rebroadcast indoors by the indoor antenna, filling your home/office with strong 5G/4G LTE coverage. Two-Way Communication: The process reverses for your outgoing calls and data, sending your strong signal back to the tower, completing a stable, high-speed communication loop.

• 【OPTIMIZED FOR AT&T, CRICKET & STRAIGHT TALK】 Specifically engineered for Band 12/17, this cell phone signal booster is the perfect solution for AT&T, Cricket, Straight Talk, and US Cellular users. It effectively amplifies weak 5G and 4G LTE signals to eliminate dead zones. IMPORTANT: Before purchasing, please check whether the band used by the mobile phone matches the working band of the booster, otherwise it will not work. Booster working band is: band 12/17
• 【BLAZING FAST DATA & CRYSTAL CLEAR CALLS】 Say goodbye to buffering videos, dropped calls, and failed texts. Our advanced repeater technology stabilizes your connection, delivering faster download/upload speeds and HD voice quality. Whether you are streaming 4K movies, attending Zoom meetings, or gaming, enjoy uninterrupted connectivity. The booster simultaneously enhances signals for all wireless devices, including smartphones, tablets, and mobile hotspots, ensuring your whole family stays connected at high speed.
• 【WHOLE-HOME COVERAGE UP TO 3,000 SQ.FT】 Designed for large homes, offices, basements, and garages, this system covers up to 3,000 sq. ft. (approx. 2-3 rooms) depending on your outdoor signal strength. By providing consistent coverage, it prevents your phone from constantly searching for a tower, which significantly extends your device's battery life. Ideal for multi-user households where simultaneous calling and data usage are required without signal congestion.
• 【LONG-RANGE HIGH-GAIN YAGI ANTENNA】 Equipped with a professional Directional Yagi Outdoor Antenna, this kit can capture weak signals from cell towers up to 30 miles away. Unlike omnidirectional antennas, the Yagi design focuses energy in one direction for maximum gain (65dB). For best results, use the "OpenSignal" or "Cell Finder" app to locate the nearest tower and point the antenna directly at it. This ensures you extract the strongest possible signal from distant towers.
• 【FCC CERTIFIED & RISK-FREE WARRANTY】 Fully FCC Certified for safe and legal operation in the US. We stand behind our quality with comprehensive support: 30-Day Money- Guarantee, 90-Day Free Replacement for defective units, and a 2-Year Manufacturer Warranty.