Using this GSM antenna is a breeze. First, find a ferrous surface like a metal pole or a metal box and attach the antenna's magnetic base to it. Connect the SMA connector to your device. You're now ready to enjoy improved signal reception. When using, avoid placing the antenna near large metal objects or sources of strong electromagnetic interference as this might affect its performance. For maintenance, keep it clean by gently wiping it with a soft, dry cloth. Store it in a cool, dry place when not in use. This will help keep the antenna in good condition and ensure it serves you well for a long time.