Applying the same logic to cell phone headsets, a normal headset (one that goes on one ear) is a mono headset with only one streaming line of audio. You have one ear, one speaker, and one line for audio. A stereo bluetooth headset will cover both ears and split the audio into a left and right channel for sound.
BMW Welt (English â BMW World), is a multi-functional customer experience and exhibition facility of the BMW AG, located in Munich, Germany.n the meeting forum, BMW Welt offers conference rooms and the opportunity to stage media events. The building often houses exhibitions related to new BMW models and, since 2012, other BMW Group brands such as Mini and Rolls-Royce.
In these conditions, the company had to think to other products and so BMW starts building motorcycle engines. In 1920, Martin Stolle and Max Friz design the M2 B 15 engine for the Victoria motorcycle from NÃ¼rnberg. This was the first BMW motorcycle engine and it was produced between 1920 and 1922. 1921. BMW's first motorized bicycle is called Flink and sees the light in 1921. They were powered by a Kurier two stroke engine. 1922. 1922 is another milestone in BMW history. The first BMW factory is built on Neulerchenfeldstrasse -- the site of Otto's old aircraft factory -- near the current day Olympic complex in Munich. 1923