This is a Spiral Type GSM Antenna with a standard SMA Male Connecter and 3-meter wire length. It provides a high gain of 5 dBi and is suitable for tough terrain and open-air environment applications.  The input impedance of this antenna is 50 ohm. It comes with a magnetic base. 
Features:
Connector Type: SMA male.
3 Meter Wire Length.
Enhance and maintain excellent signal quality.