--- product_id: 118067098 title: "Phonelex at&T T-Mobile Cell Phone Signal Booster 4G LTE 700Mhz Band12/17 Cell Phone Booster Repeater ATT Mobile Signal Amplifier (Main Body)" brand: "phonelex" price: "¥19141" currency: JPY in_stock: false reviews_count: 4 category: "Wireless" url: https://www.desertcart.jp/products/118067098-phonelex-at-and-t-t-mobile-cell-phone-signal-booster store_origin: JP region: Japan --- # Phonelex at&T T-Mobile Cell Phone Signal Booster 4G LTE 700Mhz Band12/17 Cell Phone Booster Repeater ATT Mobile Signal Amplifier (Main Body) **Brand:** phonelex **Price:** ¥19141 **Availability:** ❌ Out of Stock ## Quick Answers - **What is this?** Phonelex at&T T-Mobile Cell Phone Signal Booster 4G LTE 700Mhz Band12/17 Cell Phone Booster Repeater ATT Mobile Signal Amplifier (Main Body) by phonelex - **How much does it cost?** ¥19141 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/118067098-phonelex-at-and-t-t-mobile-cell-phone-signal-booster) ## Best For - phonelex enthusiasts ## Why This Product - Trusted phonelex brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Description NOTE : Before you use this item , You should get 2-3 bars of stable signal in the location where the outdoor antenna is fixed in. Specification:Operation Frequency:Band 12 Band17 Frequency Range:Uplink:698MHz-716MHz,Downlink:728MHz-746MHz Emission Designator:LTE(G7D) AGC LEVEL:Uplink:-45.00 Downlink:-56.00 Gain:Uplink:60±2dB Downlink:62±2dB I/O Port: SMA-Female on Both ends Output Power:Uplink:17.70dBm Downlink:7.85dBm Max.Antenna Gain:Uplink:8.1dBm Downlink:7.85dBm Power Supply:DC 5V from adapter Dimensions:109*63*16mm Weight:1.02kg Guarantee :FCC authentication certificate30 days- Money back One Year Manufacturer Warranty Package Content: 1* AT&T 700MHz Single Band Repeate 1 * AC Adapterl Introduction: the outdoor antenna can pick up good mobile signal from outside of your house, and send the signal through coaxial cable to the booster, the cell phone signal booster can amplify the signal, then the amplified signal is sent to the indoor antenna, the indoor antenna can transmit the signal into your house, so you can enjoy clearer phone call or faster mobile date inside your house Installation Steps: 1. Mount the Outdoor Antenna. Choose a location for the Outdoor Antenna using your cell phone to determine the area of strongest signal 2. Place the Base Unit where you want to create a Cell Zone. For the widest possible signal area, position the Base Unit near the middle of a room 3. Connect the Indoor Antenna to the Base Unit and place it where you need signal 4. Run the provided coaxial cable between the Base Unit and Outdoor Antenna 5. Connect the Base Unit to the provided power supply and plug into a power outlet. ## Features - The cell phone signal booster work for AT&T 4G LTE 700MHz , it can receive the signal from the signal tower ,and then amplifier your mobile signal , This cell signal booster amplifier supports any phones for any Wireless Carriers in the frequency range : Downlink :728-746 MHz Uplink : 698-716 MHz - Supports voice and 4G data for 4G/LTE mobile phones, including IOS , Android, Windows Phone Systems, etc., better cell phone voice quality, faster uploads and downloads Data ,Get fewer Missed calls, The mobile signal Amplifier 's Coverage Range can up to 1500-2000 sq.ft , solve your bad mobile network signal and enjoy your Nice time. - The cell phone signal booster repeater can solve your poor signal reception problem inside your house,so you can enjoy clearer phone call or faster mobile date inside your house. Get fewer Missed calls, better cell phone voice quality - Small Size, Light Weight, Beautiful Repeater, Low Operating Temperature, High-Gain Linear Power, The cell phone signal booster repeater is used for Village,Garage,Basement,Home,Office , hotel, apartment and so on - FCC authentication certificate,One Year Manufacturer Warranty , money-back guarantee, high Gain booster repeater , All parts included in the kit , very easy to install ## Images ![Phonelex at&T T-Mobile Cell Phone Signal Booster 4G LTE 700Mhz Band12/17 Cell Phone Booster Repeater ATT Mobile Signal Amplifier (Main Body) - Image 1](https://images-na.ssl-images-amazon.com/images/I/41A7GOPMpWL.jpg) ![Phonelex at&T T-Mobile Cell Phone Signal Booster 4G LTE 700Mhz Band12/17 Cell Phone Booster Repeater ATT Mobile Signal Amplifier (Main Body) - Image 2](https://images-na.ssl-images-amazon.com/images/I/31rC5vYEa3L.jpg) ![Phonelex at&T T-Mobile Cell Phone Signal Booster 4G LTE 700Mhz Band12/17 Cell Phone Booster Repeater ATT Mobile Signal Amplifier (Main Body) - Image 3](https://images-na.ssl-images-amazon.com/images/I/41Y%2Btlr0unL.jpg) ![Phonelex at&T T-Mobile Cell Phone Signal Booster 4G LTE 700Mhz Band12/17 Cell Phone Booster Repeater ATT Mobile Signal Amplifier (Main Body) - Image 4](https://images-na.ssl-images-amazon.com/images/I/310DR7fUdVL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Works really well ! *by M***. on April 11, 2019* We're very satisfied with this Booster, When we set the booster up ,it obviously improved our 4g cell service , This booster actually works really well, so happy about it. ### ⭐⭐⭐⭐⭐ Definitely satisfied this product. *by A***R on April 11, 2019* It is really improved cell reception, After installed this,my cell signal Went from 1 bar to 4 bars, I now can get good att cell service , Overall, I'm definitely satisfied this product ! ### ⭐⭐⭐⭐⭐ It's very helpful for me ! *by A***R on April 11, 2019* I am very pleased I bought this product, This unit give me a good cell service in the remote village where I live, Now I got 4 bars inside my house , Great product ! --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.jp/products/118067098-phonelex-at-and-t-t-mobile-cell-phone-signal-booster](https://www.desertcart.jp/products/118067098-phonelex-at-and-t-t-mobile-cell-phone-signal-booster) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-10-17*