Features: Powerful signal coverage: This product has a transmission power of up to 1000MW and can achieve wireless communication over long distances, providing a powerful signal coverage Multi functional use: This radio interface is compatible SA818 Ham Allstars and supports devices such as for RPi 2/3/4, providing a wide compatibility and flexible application scenarios. Portable design: The product adopts a portable design, which is convenient to carry and suitable for outdoor use, providing users with convenient communication solution. Chassis Hotspots function: The product is equipped with chassis Hotspots function, which can effectively dissipate heat and ensure the stability and safety of the equipment during operation. FOr communication scenarios such as mountainous areas, and other environments where personnel are relatively isolated or communication is difficult, providing reliable communication support Specifications: Item:SA818 Ham Allstars Radio Interface Material: Metal Size:As Pictures Note: Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 1Set SA818Ham Allstars Radio Interface