MIDDLETON, Wis.--(BUSINESS WIRE)--Spectrum Brands Holdings, Inc. (NYSE: SPB), a global consumer products company offering an expanding portfolio of leading brands providing superior value to consumers and customers every day, announced today it will participate in the Barclays Global Consumer Staples Conference on Wednesday, September 9 in Boston. The Spectrum Brands presentation will be delivered by Doug Martin, Executive Vice President and Chief Financial Officer, at 1:30 pm Eastern Time (12: