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Almost all wireless microphone systems use wide band FM modulation, requiring approximately 200 kHz of bandwidth. Because of the relatively large bandwidth requirements, wireless microphone use is effectively restricted to VHF and above. Many older wireless microphone systems operate in the VHF part of the electromagnetic spectrum. Systems ...
The automotive Hands-Free use case is where an on-board terminal device (typically an electronic device as a Car-Kit installed in the car) can talk via messaging capability to another communication device (typically a mobile phone). For example, Bluetooth MAP is used by HP Send and receive text (SMS) messages from a Palm/HP smartphone to an HP ...
Mobile phone or smartphone headsets may include a volume control, microphone and 3.5mm plug. Mobile (cellular) phone headsets are often referred to as handsfree. Older mobile phones used a single earphone with a microphone module connected in the cable. For music-playing mobile phones, manufacturers may bundle stereo earphones with a microphone.
Ahead are the best phones for people who are hard of hearing. Get the full scoop on cell phones, amplified devices, and caption phones that are all designed to make communicating easier and simpler.
Microphones, to take or make phone calls, or take voice commands Most of the "Hearables" seen to date are Bluetooth devices that use phones or PCs as the central computing unit. Vinci smart headphones, announced in 2016, [ 5 ] incorporated a dual-core CPU, local storage, Wi-Fi, and 3G connectivity that allow users to use without a phone.
Wireless control and communication between a mobile phone and a handsfree headset. This was one of the earliest applications to become popular. [38] Wireless control of audio and communication functions between a mobile phone and a Bluetooth compatible car stereo system (and sometimes between the SIM card and the car phone [39] [40]).
The host stack is generally implemented as part of an operating system, or as an installable package on top of an operating system. For integrated devices such as Bluetooth headsets, the host stack and controller stack can be run on the same microprocessor to reduce mass production costs; this is known as a hostless system.
Nady Systems, Inc. Georg Neumann GmbH; Nevaton; NTi Audio; ... The following is a list of defunct microphone manufacturers with articles. Aiwa; ... Mobile view; Search.
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