The Canon Speedlite 430EX III-RT flash is a professional, lightweight external lighting unit equipped with a radio wave wireless transmission system (RT). This flash operates with a coverage range between 24 to 105mm, making it an ideal choice for enhancing photo lighting in studios or for outdoor photography. Key Technical Specifications 🔹Wireless Control: Supports radio wireless communication (2.4 GHz) up to a distance of 30 meters, in addition to optical communication. 🔹Guide Number: 141 feet (43 meters) at ISO 100 and 105mm. 🔹Lighting Angle: Head is tiltable (up to 90° upwards) and rotatable (150 right and 180 left) for easy light direction. 🔹Recycling Speed: From 0.1 to 3.5 seconds. 🔹Power Source: Powered by 4 AA batteries. 🔹Exceptional Compatibility: Fully compatible with Canon's E-TTL / E-TTL II metering systems. The flash is in good working condition with no defects, except for the lighting filter which has a visible crack as shown in the image, but this does not affect photography.