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2. List of Bose portable audio products - Wikipedia

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

   The SoundLink Max was released on 16th May 2024 for $399. As of 2024, it is the biggest sounding portable speaker designed by Bose. The system uses Bose articulated array with 3 transducers across the front speaker to deliver a spacious stereo sound. Two custom designed passive radiators are responsible for its big bass. Audio can also be ...

3. Megaphone - Wikipedia

   en.wikipedia.org/wiki/Megaphone

   A megaphone, speaking trumpet, bullhorn, blowhorn, or loudhailer is usually a portable or hand-held, cone-shaped acoustic horn used to amplify a person's voice or other sounds and direct it in a given direction. The sound is introduced into the narrow end of the megaphone, by holding it up to the face and speaking into it, and the sound waves ...

4. Megaphone (disambiguation) - Wikipedia

   en.wikipedia.org/wiki/Megaphone_(disambiguation)

   A megaphone is a portable funnel-shaped device used to amplify a person's voice or other sounds. Megaphone could also mean: Megaphone (podcasting), a podcasting technology company, formerly Panoply Media; Megaphone (band), rock band from Orlando, Florida; Megaphone desktop tool, the pro-Israel lobbying software tool

5. Loudspeaker - Wikipedia

   en.wikipedia.org/wiki/Loudspeaker

   The term loudspeaker may refer to individual transducers (also known as drivers) or to complete speaker systems consisting of an enclosure and one or more drivers.. To adequately and accurately reproduce a wide range of frequencies with even coverage, most loudspeaker systems employ more than one driver, particularly for higher sound pressure level (SPL) or maximum accuracy.

6. Portable media player - Wikipedia

   en.wikipedia.org/wiki/Portable_media_player

   The first production-volume portable digital audio player was The Audible Player (also known as MobilePlayer, or Digital Words To Go) from Audible.com available for sale in January 1998, for $200. It only supported playback of digital audio in Audible's proprietary, low-bitrate format which was developed for spoken word recordings.

7. Long-range acoustic device - Wikipedia

   en.wikipedia.org/wiki/Long-range_acoustic_device

   Acoustic hailing devices are acoustic devices capable of outputting intelligible sound at very high volumes. The distance at which acoustic hailing can be effective varies based on several factors including the sound level, directionality, and frequency of the acoustic source, the sensitivity and directionality of the receiver, and the transmission channel environment.