Features:1. Huge impacts - like having a 4 foot antenna on your cell phone.2. Improves reception, reduce static in boats, elevators, cars, buildings, tunnels, and mountains.3. Works on any analog, digital, and tri-band phones.4. Eliminate dropped calls.5. Easy to install, simply peel and stick to the inside of your battery compartment.Notice:1. Due to the different monitor and light effect, the actual color maybe a slight different from the picture color.2. Please allow 1-3cm differs due to manual measurement.Specification:Type: signal enhancementColor: goldModel: A, BWeight: 18gSize: 3.5cm x 2cm(L*W)includes:Choice 1:1 x Phone Signal Enhancement Stickers Choice 2:10 x Phone Signal Enhancement Stickers Choice 3:2 x Phone Signal Enhancement Stickers Choice 4:5 x Phone Signal Enhancement Stickers