3 dBi GSM rubber duck antenna with SMA male RA: A compact GSM antenna designed to enhance wireless signal reception with a gain of 3 dBi. It features an SMA male right-angle (RA) connector, making it easy to install in tight spaces or devices where straight connectors won’t fit. Ideal for GSM modules, routers, and other communication equipment, this antenna combines durable rubber construction with reliable performance for stable signal coverage in both indoor and outdoor applications.