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2. FM transmitter (personal device) - Wikipedia

   en.wikipedia.org/wiki/FM_transmitter_(personal...

   A personal FM transmitter is a low-power FM radio transmitter that broadcasts a signal from a portable audio device (such as an MP3 player or a smartphone) to a standard FM radio. Most of these transmitters plug into the device's headphone jack and then broadcast the signal over an FM broadcast band frequency, so that it can be picked up by any ...

3. Transmitter - Wikipedia

   en.wikipedia.org/wiki/Transmitter

   Commercial FM broadcasting transmitter at radio station WDET-FM, Wayne State University, Detroit, US.It broadcasts at 101.9 MHz with a radiated power of 48 kW.. In electronics and telecommunications, a radio transmitter or just transmitter (often abbreviated as XMTR or TX in technical documents) is an electronic device which produces radio waves with an antenna with the purpose of signal ...

4. Bluetooth - Wikipedia

   en.wikipedia.org/wiki/Bluetooth

   A Bluetooth earbud, an earphone and microphone that communicates with a cellphone using the Bluetooth protocol. Bluetooth is a short-range wireless technology standard that is used for exchanging data between fixed and mobile devices over short distances and building personal area networks (PANs).

5. FM transmitter - Wikipedia

   en.wikipedia.org/wiki/FM_transmitter

   A personal FM transmitter, a very short range device to enable the listening of music from a music device through the speakers of a regular FM radio. Topics referred to by the same term This disambiguation page lists articles associated with the title FM transmitter .

6. Smartphone - Wikipedia

   en.wikipedia.org/wiki/Smartphone

   These include a sealed body that does not allow replacing the battery, a lack of the physical audio connector (since the iPhone 7 from 2016), a screen with a cut-out area at the top for the earphone and front-facing camera and sensors (colloquially known as "notch"; since the iPhone X from 2017), the exclusion of a charging wall adapter from ...

7. Near-field communication - Wikipedia

   en.wikipedia.org/wiki/Near-field_communication

   NFC and Bluetooth are both relatively short-range communication technologies available on mobile phones. NFC operates at slower speeds than Bluetooth and has a much shorter range, but consumes far less power and doesn't require pairing. [90] NFC sets up more quickly than standard Bluetooth, but has a lower transfer rate than Bluetooth low ...

8. Infinity transmitter - Wikipedia

   en.wikipedia.org/wiki/Infinity_transmitter

   An infinity transmitter (also known as a harmonica bug) is a surveillance device used to covertly monitor conversation in a room through a telephone line. Its name derives from the fact that, by using a telephone line as a transmitter, it can work at an infinite distance, unlike other bugging devices that have only a finite signal range. [ 1 ]