Features: Stable signal(Frequency: 26-28MHz) High gain antenna(Gain: 3db 4m/4.4yd extension cord Magnetically mountable - Easy to operate. Perfect match for CB radio. Specification: Type: Antenna Kit Model number: MAG-1345 Frequency: 26-28MHz Gain: 3db Standing wave ratio: 1, 2:1 Impedance: 50 Maximum RF power: 30W Height: Approx. 30cm / 11.8in Cable: RG-58U 4m / 4.4yd Connection: PL-259 Material: ABS + Metal Color: Black Weight: Approx. 512g Package list: 1 * Antenna 1 * Extension Cable 1 * Hex Wrench Note: Please allow slight error due to manual measurement. Thanks for your kind understanding.1Stable signal(Frequency: 26-28MHz) 2High gain antenna(Gain: 3db 34m/4.4yd extension cord 4Magnetically mountable - Easy to operate. 5Perfect match for CB radio.