Features: Band Antenna with High Gain (UHF 400 520MHz/ 136 174MHz) enhances communication through superior amplification for 701 compatible devices. Crafted from heat resistant silicone and protected materials. Ideal for outdoor enthusiasts,technical teams requiring two way radio communication environments. Optimized for field operations,event coordination where portable UHF/ enhancement is critical. The flexible silicone construction combined with standardized seamless compatibility with most handheld radios and talkies. Specifications: Component: silicone. Size: 21cm long. Weight: 80g. Connector: -f. Frequency: 144/430MHz. Gain: 2.15dBi. power: 10 . VSWR: less than 1.5:1. Impedance: 50 ohms. Frequency : 136-174 400-520MHz (MHz). output power: 10 (W). Theoretical communication distance: 5km-10km (km). Use scenario: [Amateur Radio] is suitable for amateurs to conduct remote communication and improve seamless docking capabilities. [Security Monitoring] is used in wireless monitoring systems to improve the stability and coverage area of ​​monitoring signals. [Wireless ] - transmission and improve data transmission rate and stability. []In outdoor activities, communication are provided to the safety of the team. Package Includes: 1 -band antennae female type note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution.