Question: Serene is a mobile phone produced as a joint venture between Samsung Electronics and a high-end Danish consumer electronics company founded in what year?
Context: The Samsung SGH-D807 is a mobile phone manufactured by Samsung Electronics.  It is the third model in the Samsung's mobile phone 'D' series The Samsung SGH-D900, also known as the "Ultra Edition 12.9" or "Black Carbon", is a slider-style mobile phone created by Samsung Electronics that was announced in Q3 2006.  It is marketed as "the world's thinnest slider phone".  Since the end of 2006, a Wine Red edition was added and 2007 marked the introduction of a chrome edition to the lineup.  There is also an upgrade of this model, the Samsung D900i which can be used to access documents on your computer from your phone and added an FM radio as well as was made out of higher-quality materials. The Nokia 1100 (and closely related variants, the Nokia 1101 and the Nokia 1108) is a basic GSM mobile phone produced by Nokia.  Over 250 million 1100s have been sold since its launch in late 2003, making it the world's best selling phone handset and the best selling consumer electronics device in the world at the time.  The model was discontinued in 2009. The Samsung E2130 is a mobile phone developed by Samsung Electronics.  This phone is specially designed for multimedia purposes and includes the new dual speaker, MP3 Player, VGA Camera and FM Radio.  The phone is marketed by the name of 'Samsung Guru E2130' in India. The Samsung SGH-A167 is a mobile phone released by Samsung Electronics.  The A167 was released by AT&T in 2009 as a Prepaid mobile phone. Vifa is a Danish consumer electronics company that designs and manufactures high-end audio products.  It was founded in 1933 by N.C.Madsen, manufacturing driver units for many high-end brands until 2014, when it made a transition into making its own wireless speakers.  It launched a line-up of Bluetooth systems in 2014 and 2016 which are named after the capital cities of Scandinavian nations. Serene is a mobile phone produced as a joint venture between Samsung Electronics and Bang & Olufsen.  It was released in the last quarter of 2005 in Europe.  It is available in select stores throughout the world and costs $1275 (~€1000). The Samsung Wave (or Samsung Wave GT-S8500) is a smartphone developed and produced by Samsung Electronics.  It is the first smartphone to run the Bada operating system developed by Samsung Electronics, which was commercially released on June 1, 2010.  The Wave is a touchscreen phone powered by Samsung's "Hummingbird" CPU (S5PC110), which includes 1 GHz ARM Cortex-A8 CPU and a built-in PowerVR SGX 540 graphics engine.  It also has a "Super AMOLED" screen and 720p high-definition video capture capabilities.  Due to shortage of Super AMOLED screens, Samsung released a successor to the device called Wave II and ceased production of the original S8500 model. Bang & Olufsen (B&O) (stylized as BANG & OLUFSEN) is a high-end Danish consumer electronics company that designs and manufactures audio products, television sets, and telephones.  It was founded in 1925 by and Svend Olufsen, who designed a radio to work with alternating current, a product of significance at a time when most radios were still running on batteries.  In 2004, the company opened a factory in the Czech Republic where it employed approximately 250 staff producing mainly audio products. Samsung Electronics Co., Ltd. (Korean: 삼성전자; Hanja: 三星電子 (Literally "tristar electronics")) is a South Korean multinational electronics company headquartered in Suwon, South Korea.  Through extremely complicated ownership structure with some circular ownership, it is the flagship company of the Samsung Group, accounting for 70% of the group's revenue in 2012.  It is the world's second largest information technology company by revenue after Apple.  Samsung Electronics has assembly plants and sales networks in 80 countries and employs around 370,000 people.  Since 2012, Kwon Oh-hyun has served as the company's CEO.
Answer: 1925