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Sennheiser electronic GmbH & Co. KG ( / ˈzɛnhaɪzər /, German pronunciation: [zɛnˈhaɪ̯zɐ]) is a German audio equipment manufacturer headquartered in Wedemark. Sennheiser specializes in equipment for both the consumer and professional audio markets, including microphones, headphones, and loudspeakers . Founded in 1945 by Fritz Sennheiser ...
Harry McCune, Founder. Number of employees. 200. Website. www .mccune .com. McCune Audio Video Lighting (previously known as Harry McCune Sound Service, McCune Audio Visual and McCune Audio Visual Video) is an American company based in South San Francisco, California, with offices in Monterey and Anaheim. It is one of the oldest and largest ...
Headphones are a pair of small loudspeaker drivers worn on or around the head over a user's ears. They are electroacoustic transducers, which convert an electrical signal to a corresponding sound. Headphones let a single user listen to an audio source privately, in contrast to a loudspeaker, which emits sound into the open air for anyone nearby ...
Rohde & Schwarz SIT GmbH develops crypto products and systems for government agencies, the German armed forces, authorities, the military and private industry. The subsidiary's high-security encryption technology is used for both wireless and wireline communications. As early as 2001, Rohde & Schwarz SIT launched the world's first crypto phone ...
The Telefunken company was founded in 1903 with the aim of developing wireless telegraphy. At the end of the 1930s the total workforce of Telefunken was 23,500 employees, increasing to 40,000 during the course of World War II, including many forced labourers and "Eastern workers".(Quoted from German Wikipedia:de:Telefunken). From 1936 ...
From January 2008 to December 2012, if you bought shares in companies when David M. Lawrence, M.D. joined the board, and sold them when he left, you would have a 48.7 percent return on your investment, compared to a -2.8 percent return from the S&P 500.
Wireless LAN (WLAN) channels are frequently accessed using IEEE 802.11 protocols. The 802.11 standard provides several radio frequency bands for use in Wi-Fi communications, each divided into a multitude of channels numbered at 5 MHz spacing (except in the 45/60 GHz band, where they are 0.54/1.08/2.16 GHz apart) between the centre frequency of the channel.
QuietComfort 20. The "QuietComfort 20" (QC20) and QC20i in-ear headphones were released in 2015 and are the company's first in-ear noise cancelling headphones. [19] It received a 2014 Red Dot Design Award. [20] Also, it received a CNET 's Editors' Choice Award of 4.5/5 points for its active noise-cancelling.