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SoundLink Color. SoundLink Color. The SoundLink Color was introduced in 2015 as Bose's portable Bluetooth loudspeaker. [25] It was battery-powered, and charging was via a micro-USB port. The original Soundlink Color was replaced by the SoundLink Color II in 2016, [26] which had a slimmer design and remains on sale as of June 2019. [27] [28] [29 ...
On March 15, 2007, Bose redesigned the ear tips and the color of the cord was changed from black and white. [4] [5] On October 11, 2007, the headphone plug was redesigned to make it compatible with the Apple iPhone. The circuit board was relocated from the headphone plug to midway up the cord.
In 2021, Bose released the Bose QuietComfort 45 headphones. This model introduced USB-C support for more convenient and faster charging. Bose also added a fourth external microphone to enhance call quality and integrated Bluetooth 5.1 to improve wireless range and connection stability.
On the device side, a modified Micro-B plug (Micro-B SuperSpeed) is used to cater for the five additional pins required to achieve the USB 3.0 features (USB-C plug can also be used). The USB 3.0 Micro-B plug effectively consists of a standard USB 2.0 Micro-B cable plug, with an additional 5 pins plug "stacked" to the side of it.
With the introduction of the USB micro plug, a new plug receptacle called micro-AB was also introduced. It can accept either a micro-A plug or a micro-B plug. Micro-A adapters allow for connection to standard-A plugs, as used on fixed or standard devices. An OTG product must have a single micro-AB receptacle and no other USB receptacles. [5] [6]
USB-C plug USB-C (SuperSpeed USB 5Gbps) receptacle on an MSI laptop. USB-C, or USB Type-C, is a 24-pin connector (not a protocol) that supersedes previous USB connectors and can carry audio, video, and other data, to connect to monitors or external drives. It can also provide and receive power, to power, e.g., a laptop or a mobile phone.
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With a DC-biased condenser microphone, the plates are biased with a fixed charge (Q). The voltage maintained across the capacitor plates changes with the vibrations in the air, according to the capacitance equation (C = Q ⁄ V), where Q = charge in coulombs, C = capacitance in farads and V = potential difference in volts. A nearly constant ...