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2. List of Bose portable audio products - Wikipedia

   en.wikipedia.org/wiki/List_of_Bose_portable...

   The portable audio products sold by Bose Corporation have been marketed as portable smart speaker and SoundLink. These wireless speaker systems are battery powered and play audio over a wireless connection from a separate source device (such as a computer or smartphone). Most Soundlink models use Bluetooth to communicate with the source device.

3. Wireless speaker - Wikipedia

   en.wikipedia.org/wiki/Wireless_speaker

   Wireless speakers are loudspeakers that receive audio signals using radio frequency (RF) waves rather than over audio cables. The two most popular RF frequencies that support audio transmission to wireless loudspeakers include a variation of WiFi IEEE 802.11 , while others depend on Bluetooth to transmit audio data to the receiving speaker.

4. Google Nest (smart speakers) - Wikipedia

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

   The device is powered by a proprietary pin-style DC plug with higher energy input and reliability than the previous iteration's Micro-USB. The upgrades include a larger speaker, an additional microphone, a machine learning chip that can cache voice recognition data for commonly used commands locally. It contains LED lights that highlight the ...

5. HomePod Mini - Wikipedia

   en.wikipedia.org/wiki/HomePod_Mini

   Speakers 7 tweeters 5 tweeters 1 full-range driver, 2 passive radiators 4-inch (10 cm) woofer -Microphones 6 microphones 4 microphones Connectivity Wi-Fi 5 (802.11ac) with MIMO: Wi-Fi 4 (802.11n) with MIMO Bluetooth 5-Thread-Ultra-wideband Sensors Accelerometer -Humidity and temperature Sound recognition Dimensions 6.8 in × 5.6 in

6. Microphone - Wikipedia

   en.wikipedia.org/wiki/Microphone

   A wireless microphone transmits the audio as a radio or optical signal rather than via a cable. It usually sends its signal using a small radio transmitter to a nearby receiver connected to the sound system, but it can also use infrared waves if the transmitter and receiver are within sight of each other.

7. Huawei FreeBuds - Wikipedia

   en.wikipedia.org/wiki/Huawei_FreeBuds

   Huawei FreeBuds are wireless Bluetooth and NearLink earbuds. They were first announced and released on March 27, 2018, alongside the Huawei P20 series.In addition to playing audio, the Huawei FreeBuds contain built-in microphones for noise cancellation, accelerometers, and optical sensors to detect wear status and gestures (e.g., double-tap to pause audio).