Samsung SGH-A657 (AT&T)

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The Samsung SGH-A657 is a "rugged" Samsung bar phone for AT&T. The phone has various features, including resistance to dust, shock, vibration, moisture, and falls. Push To Talk (PTT) is also supported, along with a small LED flashlight and a task manager button.

Samsung South Korean multinational conglomerate

Samsung is a South Korean multinational conglomerate headquartered in Samsung Town, Seoul. It comprises numerous affiliated businesses, most of them united under the Samsung brand, and is the largest South Korean chaebol.

AT&T American multinational conglomerate holding company

AT&T Inc. is an American multinational conglomerate holding company headquartered at Whitacre Tower in Downtown Dallas, Texas. It is the world's largest telecommunications company, the second largest provider of mobile telephone services, and the largest provider of fixed telephone services in the United States through AT&T Communications. Since June 14, 2018, it is also the parent company of mass media conglomerate WarnerMedia, making it the world's largest media and entertainment company in terms of revenue. As of 2018, AT&T is ranked #9 on the Fortune 500 rankings of the largest United States corporations by total revenue.

Featured prominently, with its own keypad button, AT&T's pre-installed Navigator GPS program. MP3 and web browsing capability are also included on the approximately 4 ounce device. [1]

MP3 is a coding format for digital audio. Originally defined as the third audio format of the MPEG-1 standard, it was retained and further extended—defining additional bit-rates and support for more audio channels—as the third audio format of the subsequent MPEG-2 standard. A third version, known as MPEG 2.5—extended to better support lower bit rates—is commonly implemented, but is not a recognized standard.

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