Feature: 1. Easy to Install: Phone signal stickers adopt self adhesive design, you can easily remove the improved signal sticker and apply it on the phone. 2. Portable and Compact: Improved mobile phone signal sticker is small and light, which reduces the burden on the mobile phone and is easy to carry. 3. Large Quantity: Package includes 10 pieces of telephone signal improvement stickers, which is enough to meet your needs for heavy use and long term use. 4. Useful: Solve the problem of weak signal when elevator or climbing, effectively improve the effect of receiving signals, reduce the static electricity of ships, elevators, cars, buildings, tunnels and mountains. 5. Wide Application: Booster sticker is not only used in mobile phones, but also can improve the reception of walkie talkies, buzzers and even cordless phones at home. Specification: Item Type: Phone Signal Stickers Material: PCB Weight: Approx. 20g / 0.7oz Color: Black Gold Installation Type: Self Adhesive Suitable for: Ships, Elevators, Cars, Buildings, Tunnels, Mountains. Package List: 10 x Phone Signal Stickers 10 x Instruction Manuals