O2 (UK) Telefónica O2 had a long-standing relationship with Arsenal F.C., being their shirt sponsor until the end of the 2005/2006 season. In 2005, a three-year deal was signed that saw Telefónica O2 become the team's exclusive mobile communications partner. O2 were the main sponsor of the Channel 4 reality TV show "Big Brother" from its second series (as BT Cellnet) in 2001 until its fourth series in 2003. They also sponsored the spin-off shows "Celebrity Big Brother 2" in 2002 and "" in 2003. In total O2 sponsored five series of the show. O2 sponsored music festivals, the Wireless Festivals, from
American Outdoor Brands Corporation in 2016. The name change took effect on the first business day of 2017. The change occurred at a time when the firearms industry was receiving backlash over gun violence in America, and so was also seen as an attempt to disassociate itself from the negative repercussions surrounding the issue. In 2017, firearms accounted for 86% of AOBC's revenues, and the company shipped 420,000 long guns. American Outdoor Brands also owns Battenfeld Technologies, Taylor Brands (a knife and tool maker bought in August 2016 for $95 million), and Crimson Trace (an electro-optics business which it bought in August 2016 for