SpeedFire II (For EU) - External Power Supply for Canon Speedlites, Equivalent from Godox and Yongnuo (Patent Number : 2-2016-000842)
SpeedFire II (For EU) - External Power Supply for Nikon Speedlites, Equivalent Speedlites from Godox and Yongnuo (Patent Number : 2-2016-000842)
SpeedFire II (For US) - External Power Supply for Canon Speedlites, Equivalent from Godox and Yongnuo (Patent Number : 2-2016-000842)
SpeedFire II (For US) - External Power Supply for Nikon Speedlites, Equivalent Speedlites from Godox and Yongnuo (Patent Number : 2-2016-000842)