3 meter long line makes it easy to change the position of the antenna to achieve better signal reception effect. Plastic-made antenna sucker base and cable protector make it waterproof and prevents it from oxidization. Gold-plated SMA connector makes less signal attenuation, small frequency offset. The antenna sucker base is magnetic, which can be stably put at any metal surfaces. Widely compatible with wireless communication devices, such as for walkie talkie, two way radio.