Brand New Digital Pro Slave Flash For Canon EOS R7 R8 Package Includes: Auto Slave Flash Hot Shoe Bracket Manual/Instruction Product Description: Auto Pre-Flash sensor for Red-Eye. Ultra Slim design and light weight, ideal for travel. Hot Shoe bracket included. To be used with 2 (Two) AA Batteries (not included) 1 Years Manufacturer Warranty. The device is workable for both direct hot shoe photography (when switches to Normal mode) and remote flash photography (when switches to Slave on mode). The device features 4 slave modes that allow it to work with cameras that fire their built-in flash instantaneously or that have single or multiple flash red-eye reduction system.