Features: 1. Cell Phone Antenna Amplifier - The Newest SP-13Pro Produces Boosters For These And Other Cell Phones, Also Boosts The Reception Of es, Buzzers, And Even Cordless Phones In Your Home2. The SP-13Pro Cell Phone Antenna Booster Is Ever.3. Antenna Boosters Are Now Stronger And In A Shiny Color. It Also Comes With Instructions On How To Install And Test Your New Antenna Booster.4. Huge Impact - Like Having A 3.5ft 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 Description: Name: Mobile Phone Signal Enhancement Stickersize: 3.5 x 3.5cmMaterial: FPCcolour: As Shown 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.