Features: Boost your radio's performances with the sf20 double band two way radio antennas, feature a high gains of 2.15dbi for clear and reliable communication. Crafted from abs materials, this antennas ensures stable operation with its antioxidation properties and excellent temperature and insulation resistance. The sf20 antennas is a versatiled accessory suitable for most users requiring enhancing two way radio communication, from security personnel to outdoors enthusiasts. Whether you're coordinating event or embarking on a remote adventure, the easy to install and portable sf20 keeps you connection in any environment. Experience uninterrupted transmission, making it essential upgrades for your handheld transceiver. Specifications: Component:ABS Size:Approx.65x15mm/2.56x0.59inch Color:Black Model: SF20 Connector type: SMA-F (female) Frequency band: double-band VHF/UHF Frequency: 144MHz/430MHz Gains: 2.15dBi Impedance: 50ohms Antennas length: 65mm Package Includes: 1pcs Two Way Radio Antennas note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you donot mind befores you order. 2.Due to the differences between different monitors, the picture may not reflect the actual coloring of the item. Thanks for your understandings.