Features:
Extremely compact.
Dual band, high gain! 
Comes with a magnetic mount base
UHF-PL259 connector for easy installation.
5 meters / 16.4 feet cable is long enough for you to use.

Specifications:
Frequency: Dual Frequency (136-174MHz & 400-470MHz)
Gain: 2.5 / 3db
Power: 50W (Max.)
VSWR: 1.5 
Impedance: 50Ω
Connector: UHF-PL259
Coaxial cable type: RG-58 / U
Color: Black
Magnetic mount: Diameter of 55mm / 2.2in
Antenna height: 90mm / 3.5in
Antenna diameter: 35mm / 1.4in
Cable length: Approx. 5 meters / 16.4 feet
Package weight: 325g

Package List:
1 x Antenna
1 x Magnetic Mount Base