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A very common application is a hands-free Bluetooth earpiece for a phone which may be in a user's pocket. There are two types of Bluetooth headsets. Headsets using Bluetooth v1.0 or v1.1 generally consist of a single monaural earpiece, which can only access Bluetooth's headset/handsfree profile.
A wireless microphone, or cordless microphone, is a microphone without a physical cable connecting it directly to the sound recording or amplifying equipment with which it is associated. Also known as a radio microphone , it has a small, battery-powered radio transmitter in the microphone body, which transmits the audio signal from the ...
Headsets are made with either a single-earpiece (mono) or a double-earpiece (mono to both ears or stereo). The microphone arm of headsets is either an external microphone type where the microphone is held in front of the user's mouth, or a voicetube type where the microphone is housed in the earpiece and speech reaches it by means of a hollow tube.
In 2004, Aliph released a noise-cancellation headset, which used military technology to erase background noise. [4] [5] The company's Bluetooth headset, the Jawbone, was released in 2006. [6] [7] Another headset was released in 2008 and 2009. [8] [6] AlphiCom changed its name to Jawbone in 2010. [2]
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]
While designed for a one-way audio transfer - CSR has developed a way to transfer a mono stream back (and enable use of headsets with microphones), and incorporated it into FastStream and aptX Low Latency codecs. The patent has expired. Some Bluetooth stacks enforce the SCMS-T digital rights management (DRM) scheme. In these cases, it is ...
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