Specification: Max. Gain (dB) :55dB Operation Frequency: Band 2,4,5,12,13,17,25,26,30,66 and 71 Standard Supported: LTE(G7D), CDMA, WCDMA, GSM, EDGE, TDMA and AMPS etc. Compatible with all U.S. carriers including: AT&T, MetroPCS, Cricket, Google Fi, Straight Talk, U.S. Cellular and more Features: 1. The car cell phone signal booster boosts 5G/4G LTE cell signals from cell tower, increases signal strength, minimize temporary loss of signal while driving, solve the dropped cell phone calls and slow 5g /4g network on the road, ensure call quality and data upload and download speeds. Supports the latest 5G, more reliable cell data connectin on the journey 2. The car cell phone signal booster is compatible with iPhoens and Android phones, supports multiple cellular devices simultaneously without any noticeable drop in quality or speed. Works for any phone which is receiving band 2/4/5/12/13/17/25/26/30/66/71 signals from signal tower. Supports all U.S. carriers including Verizon, AT&T, MetroPCS, Cricket, Google Fi, Straight Talk, U.S. Cellular and more 3. The car cell phone signal booster is built-in automatic gain control (AGC) taht automatically adjusts system gain and power level to get the optimum result 4. The car cigarette Lighter power adapter with USB-A and USB-C ports that can charge two USB devices simultaneously while the booster is working, which makes it ideal for long distance travelling and family trips. The cigarette lighter monitors vehicle battery and displays vehicle voltage on the LED screen, built-in smart multiple protection system to protect your devices from over-current, over-charging, safety and durability 5. The outside magnetic omni-directional antenna withstand extreme shaking, the strong magnetic makes the antenna firmly fixed on the roof. Waterproof, shockproof, sturdy, wear-resistant, easy to deal with a variety of harsh environments. Suitable for different vehicles such as car, pickups, SUVs, vans and RV Attention: 1. The booster can't create any signal,it just boosts the signals from cell tower. It won't work if the outside antenna receives cell signal too weak or not at all 2. The cables provided are plenty long so place the outside magnetic antenna to almost the back of the vehicle, keep the inside antenna as far away from the outside antenna as possible The 5g cell phone signal booster works with all U.S. Carriers including: AT&T: 600MHz Band 71700MHz Band 12/17850MHz Band 5ASW 1700MHz Band 4/66PCS 1900MHz Band 22300MHz Band 30 Google Fi: 600MHz Band 71700MHz 4G Band 12850MHz Band 26AWS 1700MHz Band 4/661900MHz Band 2/25 U.S. Cellular: 700MHz 4G Band 12850MHz 4G Band 5PCS 1900MHz Band 2 Cricket Wireless: 700MHz Band 17850MHz Band 5AWS 1700MHz Band 4/66PCS 1900MHz Band 22300MHz Band 30 Works for any phone on band 2,4,5,12,13,17,25,26,30,66 and 71