Features: 1. Cell Phone Antenna Amplifier - The est Sp-18 Produces Boosters For These And Other Cell Phones, Also Boosts The Reception Of Walkie Talkies, Buzzers, And Even Cordless Phones In Your Home 2. The Sp-18 Cell Phone Antenna Booster Is Ever. 3. Antenna Boosters Are Now Stronger And In A Shiny Golden Color. It Also Comes With Instructions On How To Install And Test Your Antenna Booster. 4. Huge Impact - Like Having A 4ft Antenna On Your Phone. 5. Improve The Reception Effect And Reduce The Static Electricity Of Ships, Elevators, Cars, Buildings, Tunnels, And Mountains. Available In Any Analog, Digital And Tri-Band Name: Mobile Phone Signal Enhancement Sticker size: 4 x 1.7cm Material: FPC colour: gold Package Contents: 10 x Mobile Phone Signal Enhancement Sticker Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.