A cellphone case that's designed to help with Wi-Fi
Hello Kitty Silicone Phone Case | Hello Kitty Phone Antenna Case - Phone Case Iphone - Aliexpress
Built-in antenna that doubles the communication speed to extend battery life iPhone case "Reach 79" What? - GIGAZINE
iPhone Signal Amplifying and Extended Battery Case - mJoose
Phone Cases Case Antenna Black Apple iPhone 7, iPhone 8 181142 CELLULARLINE... - Quickmobile
iPhone 11 Pro Antenna Repair or Replacement | Free Fusion
Creative Antenna Phone Case For Iphone 13 12 11 Pro Max Xs X Xr 7 8 Plus Tpu Soft Back Cover Solid Color Diy Material Cases - Mobile Phone Cases & Covers - AliExpress
Metal Gear Solid V iDroid iPhone 5s Case | Gadgetsin
CES 2015: Reach79's iPhone 6 Case Claims to Double Signal Strength and Improve Battery Life - MacRumors
Hands-On With the Reach79 Signal Boosting Case - Does It Work? - MacRumors
Reach79 case boasts built-in antenna to double your signal strength | Daily Mail Online
Clear phone case - Port Designs
Firefly Antenna iPhone Case Will Improve Your Cellular Signal, Bluetooth Connectivity and WiFi Range - YouTube
Is it bad to have the iPhone 13's mmWave window covered up with a case? Does holding it reduce signal strength for the high capacity 5G? : r/iphonehelp