The infrared friend or foe identifier adopts high-power infrared lamp beads. With a 2W flashing power and a professional optical lens design, the infrared light is dispersed outward through both focusing and diffusing methods, making it easier for the wearer to identify the target position conveniently and simply by the infrared recognition lens. No visible light. Avoid accidental exposure. The built-in battery shoulder light design makes it convenient and portable to wear.