Y; Functions of waterproof, anti-shock, anti-X-ray, anti-static, and etc; All around protection; Long lasting and durable
panasonic
Powerextra Professional DF-400 Speedlite Camera Flash for Canon Nikon Pentax Samsung Fujifilm Olympus Panasonic Sigma Minolta Leica Ricoh DSLR Cameras and Digital Cameras with Single-Contact Hotshoe
Powerextra speedlite with a guide number of 33 (ISO 100/1m), Support manual mode, S1 and S2 wireless flash trigger modes, Single-contact hot shoe.