This Canon 550EX Speedlite flash has been fully tested and is in great working condition. It is compatible with Canon cameras and has a hot shoe mount interface. The flash has E-TTL features and is perfect for capturing high-quality photos in low-light settings. The model is Speedlite 550EX and is suitable for cameras in the Cameras & Photo and Flashes & Flash Accessories categories. Bid with confidence and upgrade your photography gear today with this reliable and affordable flash.