Feature: These antennas can be used indoors or outdoors The base has a magnet, which can be adsorbed on iron materials. SMA interface female thread inner needle, frequency is 700-2700MHz, communication full frequency, full Netcom. The extension cable is RG174 pure copper 3 meter wire. Mini and short, easy to carry. Compatible with: Internet Of Things IOT; Machine-to-Machine M2M; Advantech Cradlepoint Digi Gemalto Encore InHand Inseego Option Red Lion Sierra Wireless Nimbelink 4G LTE Cellular Industrial Modular Modem Mobile Router Hotspot Terminal; 4G LTE RTU DTU Remote Controller Unit Specification: Material: carbon steel + ABS Connector type: SMA male Colour: Black Cable length: 3 meters Gain：7dBi Frequency Range：698-960 MHz, 1710-2170 MHz, 2300-2700 MHz Feature：with Magnetic Base Mount VSWR：< 2.0 Polarization：Linear Vertical Impedance：50 ohm Direction：Omni-directional Package Included: 2 x 4G Antenna(As the Picture Shown) Note: Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Manual measurement, please allow 1-10mm error. Thanks for your understanding.