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2. Grameenphone - Wikipedia

   en.wikipedia.org/wiki/Grameenphone

   Grameenphone was the first company to introduce GSM technology over 900 and 1800 MHz in Bangladesh. [6] It was also the first company to introduce 5G network in the country, for which the first test was done in Dhaka and Chittagong metropolitan area in mid-2022. In September 2022, Grameenphone successfully conducted trials for the second time in Dhaka, Chittagong, Sylhet, Khulna, Rajshahi ...

3. Koss Corporation - Wikipedia

   en.wikipedia.org/wiki/Koss_Corporation

   Having only a high school education, John C. Koss worked with Lange, an engineer, to develop the headphone that launched the company almost by accident, as they came upon the headphone idea as a result of an attempt to market a portable phonograph. [4] What made this product unique was the privacy switch feature, which gave listeners the opportunity to listen to the first Koss SP/3 ...

4. Clarion (company) - Wikipedia

   en.wikipedia.org/wiki/Clarion_(company)

   The Faurecia Clarion Electronics Co., Ltd. (フォルシアクラリオン・エレクトロニクス株式会社, Faurushia Kurarion Erekutoronikusu kabushiki gaisha) is a Japanese manufacturer of car audio, automotive navigation systems, AutoPCs, visual equipment, bus equipment, and communication equipment. It is since 2019 fully owned by ...

5. Headphones - Wikipedia

   en.wikipedia.org/wiki/Headphones

   Headphones connect to a signal source such as an audio amplifier, radio, CD player, portable media player, mobile phone, video game console, or electronic musical instrument, either directly using a cord, or using wireless technology such as Bluetooth, DECT or FM radio. The first headphones were developed in the late 19th century for use by switchboard operators, to keep their hands free ...

6. Bose Corporation - Wikipedia

   en.wikipedia.org/wiki/Bose_Corporation

   Bose Corporation ( / boʊz / ⓘ) is an American manufacturing company that predominantly sells audio equipment. The company was established by Amar Bose in 1964 and is based in Framingham, Massachusetts. It is best known for its home audio systems and speakers, noise cancelling headphones, professional audio products and automobile sound systems.

7. Oppo - Wikipedia

   en.wikipedia.org/wiki/Oppo

   Oppo (sometimes stylized as OPPO) is a Chinese consumer electronics manufacturer headquartered in Dongguan, Guangdong. Its major product lines include smartphones, smart devices, audio devices, power banks, and other electronic products.

8. List of largest companies in Pakistan - Wikipedia

   en.wikipedia.org/wiki/List_of_largest_companies...

   ^ a b c "10 Titans of Pakistani Business". Global Village Space. 2021-02-01. Retrieved 2022-11-02.

9. Jazz (mobile network operator) - Wikipedia

   en.wikipedia.org/wiki/Jazz_(mobile_network_operator)

   Pakistan Mobile Communications Limited (PMCL), [4] [5] doing business as Jazz, ( Urdu: جاز) is Pakistan's largest mobile network and internet services provider formed by the merger of Mobilink and Warid Pakistan.