HYS 144430MHz Band Compatible Wireless Antenna with Magnetic Mount, Dual-Band Antenna for Commercial Radios, RG174 Coaxial Cable (4.3m) with SMAP

[Magnetic base] Diameter: 4cm, Thickness: Approximately 2cm [Antenna] Frequency: 144/430MHz, Length: 40.5cm, Power Rating: 10W, Gain: 2.15dBi/4dBi [Coaxial cable] Connector: SMAP type, Cable type: RG174, Length: 4.3m It's compact and easy to store, making it ideal for using handheld radios indoors or in cars. A rubber cover is attached to the bottom of the base. It's often used as an antenna for commercial radios.