Frequency: 400-470mhz(TX/RX); Connector: SO239/UHF Female/SL16-Female; Gain: 2.5dBi; Max power: 100W; Length: 17inch Design for ham radio, repeater system, emergency communication, outdoor activities(hiking, camping, off-road) [Indoor/Outdoor Versatile Installation] Works both indoors (attics, garages) and outdoors (rooftops, walls)with easy mounting hardware included, no ground plane installation [Durable Fiberglass] Lightweight yet rugged – weatherproof, UV-resistant, and corrosion-free for years of outdoor use Provides stable signal,hit your repeater easily Package include:1*Dual Band Fiberglass Antenna ; 1*Antenna Mount Bracket UAYESOK-HF Store(If you have any questions, we'll be happy to serve you, We will reply to you within 12 hours) Package include:1*UHF Fiberglass Antenna ; 1*Antenna Mount Bracket