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2. Audio headset - Wikipedia

   en.wikipedia.org/wiki/Audio_headset

   General 3.5 mm computer headsets come with two 3.5 mm connectors: one connecting to the microphone jack and one connecting to the headphone/speaker jack of the computer. 3.5 mm computer headsets connect to the computer via a sound card, which converts the digital signal of the computer to an analog signal for the headset. USB computer headsets ...

3. Hearing protection device - Wikipedia

   en.wikipedia.org/wiki/Hearing_protection_device

   Sound levels of some daily activities. A hearing protection device, also known as a HPD, is an ear protection device worn in or over the ears while exposed to hazardous noise and provide hearing protection to help prevent noise-induced hearing loss. HPDs reduce the level of the noise entering the ear.

4. Microphone blocker - Wikipedia

   en.wikipedia.org/wiki/Microphone_blocker

   Microphone blockers disable the internal microphone by tricking the device into believing an external microphone is connected. [7] A 3.5 mm microphone blocker with just TS channel is enough to disconnect the internal microphone, but most commercial microphone blockers have TRRS connections which in theory makes them headset blockers that in ...

5. Nokia 5300 - Wikipedia

   en.wikipedia.org/wiki/Nokia_5300

   A2DP to support Bluetooth stereo headset for high quality, wireless audio transfer; Infrared (IR) Remote OTA synchronization with SyncML; Mini USB interface with USB 2.0; Local/remote synchronization with PC using PC Suite; New 2.5 mm. Nokia AV connector; Push to talk over cellular network (network dependent) Browsing and data transfer. xHTML ...

6. List of Bose headphones - Wikipedia

   en.wikipedia.org/wiki/List_of_Bose_headphones

   The Bluetooth sunglasses were released in 2019 and come in two styles – Alto and Rondo. The sunglasses have open-ear audio, UVA/UVB protection, an integrated microphone, a Bluetooth range of 9 meters, and are also AR enabled. The battery can sustain up to 3.5 hours of streaming music playback and takes up to 2 hours to charge. [18]

7. Stenomask - Wikipedia

   en.wikipedia.org/wiki/Stenomask

   Court reporter tests his stenomask. [1]A stenomask is a hand-held microphone built into a padded, soundproof enclosure that fits over the speaker's mouth or nose and mouth. . Some lightweight versions may be fitted with an elastic neck strap to hold them in place while freeing the user's hands for other tas