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It was designed to output its video to the user's television in order to lower the cost of acquisition, and to offer remote control and a powerful video compression codec for unequaled video quality and ease of use with a video relay service (VRS). Favourable reviews quickly led to its popular usage at educational facilities for the deaf, and ...
Modern wireless or cordless earphones have no cord connecting the two earphones to the source device or to each other; they receive audio by means of a wireless technology such as Bluetooth. In historical usage, 'wireless' referred to a connection to a radio receiver, which was known as a wireless.
A typical call center/office headset. A headset is a combination of headphone and microphone.Headsets connect over a telephone or to a computer, allowing the user to speak and listen while keeping both hands free.
The Compact Cassette, also commonly called a cassette tape, [2] audio cassette, or simply tape or cassette, is an analog magnetic tape recording format for audio recording and playback.
A network video recorder (NVR) is a specialized computer system that records video to a disk drive, USB flash drive, memory card, or other mass storage device. An NVR itself contains no cameras, but connects to them through a network, typically as part of an IP video surveillance system.