Canon Speedlite 320EX Flash for Canon SLR Cameras Light and compact body holds 4 AA batteries with a fast recycle time of 2.0 seconds Provides up to four hours of continuous lighting with fully charged batteries Wireless Slave function supports three groups and four channels Flash coverage can be switched by extending or retracting flash head Includes soft case, mini stand and instruction book Built-in LED light can be used to illuminate nearby subjects in dim light - Versatile vertical and horizontal bounce capability provides an extended range of possible lighting effects. Flash release function triggers the camera wirelessly from the flash on a 2-second delay, Wireless Slave function supports three groups and four channels, allowing the flash to be positioned off-camera. Flash coverage switched by extending or retracting flash head, with Normal (24mm full-frame equivalent, max. Guide No. 79 ft./24m at ISO 100) Providing up to four hours of continuous lighting with fully charged AA batteries. Tele (50mm full-frame equivalent, max. Guide No. 105 ft./32m at ISO 100) settings. Especially useful when shooting video, as a modeling light or as an AF assist beam, Allows the flash to be repositioned to illuminate the subject.