The Canon Speedlite Transmitter St-E3-rt (Ver.3) provides continued support for Canon DSLRs that feature a standard hot shoe (not compatible with multi-function shoe-equipped cameras). This set contains Canon Speedlite Transmitter St-E3-rt (Ver. 3) for Type A Eos Cameras with Hot Shoe and Lcd Panel, Soft Cas, Warranty Card (Usa/Ca) and Limited 1-Year Warranty.