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2. Smart speaker - Wikipedia

   en.wikipedia.org/wiki/Smart_speaker

   A smart speaker with a touchscreen is known as a smart display; [2] [3] these integrate a conversational user interface with display screens to augment voice interaction with images and video. They are powered by one of the common voice assistants and offer controls for smart home devices, feature streaming apps, and web browsers with touch ...

3. Google Nest (smart speakers) - Wikipedia

   en.wikipedia.org/wiki/Google_Nest_(smart_speakers)

   Unlike its closest competitor, the Amazon Echo Show, the Home Hub does not include a camera for video calls, citing customer privacy concerns. Although Google has developed an OEM solution for Assistant-powered smart display devices based on Android Things and a Qualcomm system-on-chip , the Home Hub utilizes a different hardware platform.

4. Wireless speaker - Wikipedia

   en.wikipedia.org/wiki/Wireless_speaker

   Recent models generally use Bluetooth 4.0 or even Bluetooth 5, and wireless speakers generally have a range of 10 meters. [4] Bluetooth devices use a radio communication frequency such that the devices do not have to be in a visual line of sight with each other. Some speakers may benefit from the NFC system to facilitate pairing with the source ...

5. Bluetooth - Wikipedia

   en.wikipedia.org/wiki/Bluetooth

   The Video Distribution Profile (VDP) sends a video stream from a video camera to a TV screen or a recording device. Profiles are definitions of possible applications and specify general behaviors that Bluetooth-enabled devices use to communicate with other Bluetooth devices.

6. 2.4 GHz radio use - Wikipedia

   en.wikipedia.org/wiki/2.4_GHz_radio_use

   Bluetooth devices intended for use in short-range personal area networks operate from 2.4 to 2.4835 GHz. To reduce interference with other protocols that use the 2.45 GHz band, the Bluetooth protocol divides the band into 80 channels (numbered from 0 to 79, each 1 MHz wide) and changes channels up to 1600 times per second.

7. Bluetooth Low Energy - Wikipedia

   en.wikipedia.org/wiki/Bluetooth_Low_Energy

   Bluetooth Low Energy (Bluetooth LE, colloquially BLE, formerly marketed as Bluetooth Smart [1]) is a wireless personal area network technology designed and marketed by the Bluetooth Special Interest Group (Bluetooth SIG) [2] aimed at novel applications in the healthcare, fitness, beacons, [3] security, and home entertainment industries. [4]