GDI-8218 18db 2.4Hz WiFi Router Antenna Booster * mni-directional indoor antenna. * Frequency: 2.4GHz. * V.S.W.R: &lt;1.5:1 * Polarization: vertical. * Radiation: omni. * Impedance: 50ohm. * Maximum power input: 50W. * Temperature: -40-120 C * GDI-82 and G1-81 package optional (extra purchase). * Dock extender available for extra purchase. Package Details Weight: 87.74 g Size: 40.5*7*2 cm Package Includes 1 x 18db 2.4Hz WiFi Router Antenna Free shipping with tracking. Thank you for visiting eTreasures.