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 enhancement Color: gold Model: A, B Weight: 18g Size: 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