Sennheiser electronic GmbH & Co. KG is a private German audio company specializing in the design and production of a wide range of both consumer and high fidelity products, including microphones, headphones, telephony accessories, and avionics headsets for consumer, professional, and business applications.
Red Bull Racing is a Formula One racing team based in Milton Keynes, England which currently holds an Austrian licence. It is, along with Scuderia Toro Rosso, one of two teams owned by beverage company Red Bull GmbH. The team has won two Constructors' Championship titles, in 2010 and 2011, becoming the first Austrian licensed team to win the title. The team also produced the dual world champion driver of 2010 and 2011, Sebastian Vettel. The team is managed by Christian Horner, boss of the Arden International GP2 Series team. The team has used Renault engines since 2007, and have a contract to do so until 2016.