https://www.acantcomm.com/products/4g-lte-mobile-magnetic-aluminum-antenna-ac-q7027i28/ 4G/LTE Mobile Magnetic Aluminum Antenna (AC-Q7027I28) The AC-Q7027I28 antenna delivers stable high omni-directional gain and across all 2G(GSM),3G and 4G(LTE),cellular bands from 700MHz to 2.7GHz.