Specifications: Frequency: 144/430MHz Gain: 2.15dBi Max power: 10 Watts VSWR : Less 1.5:1 Impedance: 50 OHM Connector: SMA-F Length: 39.6 cm (~15.6 inches) Impedance : 50 ohms RoHS Compliant Package: 1x Nagoya NA-771 Booster Antenna 1x Rubber spacer