How were headphones invented? Who invented headphones

Headphones were invented by Eugenbeyer.

On August 18, 1937 in Berlin, Germany, Eugenbeyer invented a miniature dynamic transducer and embedded it into a strap that could be worn on the head, thus giving birth to the world's first headphone.

In 1950, Mr. Beyer demonstrated the world's first stereo HiFi headphones, DT48S, at a public exhibition in Bremen, Germany, and accumulated 13 years of exploration and practical experience in HiFi stereo headphones. To this day, the upgraded DT48 is still selling well, and its landmark contribution to professional radio and audio and video studios has gone down in history.

Bluetooth headset is the application of Bluetooth technology to hands-free headphones, so that users can avoid the stumbling of annoying wires, and feel comfortable to talk easily in various ways. Since the advent of Bluetooth headsets, it has been a good tool for mobile business people to improve efficiency.

Bluetooth is a low-cost, high-capacity, short-range wireless communication specification. A Bluetooth laptop is a laptop with Bluetooth wireless communication function. The name Bluetooth has a legendary story.

In the 10th century, the Norse princes competed for hegemony, and the King of Denmark stepped forward, and with his tireless efforts, the bloody war was stopped, and all parties sat down at the negotiating table. Through communication, the princes released their suspicions and became friends. Because the King of Denmark loves to eat blue plums, so that his teeth are dyed blue, he is known as the King of Bluetooth, so Bluetooth has become synonymous with communication.

Now, a thousand years later, when a new wireless communication specification was introduced, people used Bluetooth to name it. In 1995, Ericsson was the first to propose the concept of Bluetooth. The Bluetooth specification operates in the microwave frequency band, with a transmission rate of 1m bytes per second, a maximum transmission distance of 10 meters, and can reach 100 meters by increasing the transmission power.

Bluetooth technology is open to the world, with good compatibility on the global scale, and the whole world can be connected by low-cost invisible Bluetooth networks.

The name Bluetooth comes from a Danish king in the 10th century, Harald Blatand, whose meaning in English can be interpreted as Bluetooth (Bluetooth) because the king likes to eat blue plums, and the gums are blue every day, so it is called Bluetooth. In the preparatory phase of the trade association, a very expressive name was needed to name this high-tech technology. Industry organizers, after a night of discussion about Europe's history and future infinite technological developments, some decided that it was only fitting to name it after King Blatand.

King Blatand united what is now Norway, Sweden and Denmark; He is articulate and sociable, and as with the upcoming technology, technology will be defined as allowing for coordinated work between different industrial sectors, maintaining good communication between various areas of the system, such as computing, mobile phones and the automotive industry. And so the name was decided.

The founder of Bluetooth is the Swedish company Ericsson, which has been developing since 1994. In 1997, Ericsson contacted other equipment manufacturers and sparked their interest in the technology. In February 1998, five multinational corporations, including Ericsson, Nokia, IBM, Toshiba and Intel, formed a Special Interest Group (SIG) with the common goal of building a global, small-scale wireless communication technology, now Bluetooth.

The origin of Bluetooth originates from the 10th century A.D. in Denmark and Norway, the Viking king Harald Bluetooth, developed by Ericsson (Ericsson) short-range wireless transmission interface, and in 1998, the United IBM, INTEL, NOKIA, TOSHIBA four manufacturers established Bluetooth SIG Bluetooth Alliance (Bluetooth Special Interest group) and Bluetooth technology has three main characteristics: no directionality, voice and data transmission, and simultaneous connection of multiple devices.

Since the birth of headphones, whether it's for self-enjoyment or street cool, people have always found a reason to use it. eyeopenerToday's topic, let's talk about the history of headphones.

In 1924, the German scientist Jurgen Bair opened an electronics company called "Beyerdynamic" in Berlin, specializing in the research and development of "electric transducers", he developed small speakers and fixed them on a curved hoop, so the world's first headphones were born!

Beyerdynamic is the oldest headphone company. In 1937, Beyerdynamic pioneered the development of the world's first dynamic headphones, the DT48, and entered the field of high-fidelity headphones. This earphone is still produced and sold today, and it can be regarded as the world's longest production history.

Beyerdynamic's headphones are preceded by the model number DT, Dynamic Telephone, which is the abbreviation of "Power**".