<ul><li>1.The antenna is to be placed outside of the car window.</li><li>2. The square repeater is to be placed inside of the car window (Make sure the square repeater is aligned right below the antenna).</li><li>3. This device is to be used in automobiles only, if you want to use this at your home PLEASE READ DESCRIPTION BELOW.</li><li>4. YOUR phone and Antenna MUST be within 3 FEET!</li></ul><br><br>

Car Cellular Phone Signal Booster & Repeater Antenna 5G, 4G LTE for Verizon At&t Sprint T-Mobile Phones by Cellet