Feature: 1. Signal Enhancement: Improved signal stickers for phones, and help to solve the problem of bad signals during elevators or climbing. This latest research result will prevent you from poor signal when travelling, mountaineering, taking the lift. 2. Multiple Uses: These boosters are not only used for cell phones, but also for two way radios, pda's, intercom, beepers, and even cordless phones in your house. 3. Lightweight: Improved mobile phone signal sticker is small and light, which reduces the burden on the mobile phone and is easy to carry. And beautifully packaged prepared to be given as a gift. 4. Self Adhesive: Adopt back adhesive design, you can easily remove the sticker and apply it on the phone, it is easy to install. 5. Applicable: The sticker can effectively improve reception and reduce static electricity in ships, elevators, cars, buildings, tunnels and mountains. Specification: Item Type: Phone Signal Stickers Material: PCB Gross Weight: 10g / 0.4oz Color: Black Parameters: 1. Improved mobile phone signal, applicable to smart devices such as mobile phones 2. Applicable to ships, elevators, cars, buildings, tunnels, mountains and other locations. Package List: 5 x Mobile Phone Sticker5 x Instruction Product Notes: Please allow a little manual errors.Due to the lighting of the photos and the difference of monitors, the pictures may not reflect the actual color of the real item. Please confirm acceptance before ordering. About Shipping: Please ensure your shipping informations are correct to avoid delivery issues. All orders are shipped within 3 days after payment. Delivery usually takes 8–12 days, The specific delivery time is depend on circumstances. If you have any questions during your purchase, feel free to contact us. We will respond you within 24 hours.