But it is also expanding into other areas, from mobile broadband dongles to smartphones and tablet computers.
Yota Devices is an experienced developer and provider of fast, reliable and elegantly designed modems, routers and dongles.
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"What people are waiting for are 4G phones, not 4G dongles, " said Roger Entner, an analyst at Recon Analytics.
"Dongles really are reaching a critical mass, " a Vodafone spokesperson told BBC News.
It makes and sells mobile handsets and other mobile devices such as dongles and tablet computers in fourteen countries.
You'll appreciate quick, easy hook-ups with monitors, projectors and more without the need to pack fiddly dongles or adaptors.
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In London the O2 trial involves dongles plugged into a computer - there are no 4G handsets available yet.
Many use dongles, which attach to computers like a USB stick and enable internet access from anywhere with a mobile signal.
Pricing for mobile data, whether on smartphones, tablets, or USB dongles for laptops and netbooks, remains more of an art than science.
You get high quality audio over Wi-Fi, with no use of dongles.
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The kit can be leveraged to design cables, dongles, boosters and extenders capable of supporting the full suite of DisplayPort features and functions.
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There are plenty of firms in the business of making squarish dongles that plug into your smartphone and help you pay for stuff.
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Adria Richards was near two delegates who joked about "big dongles" and used a technical term - forking repos - in what she felt was a sexual way.
Additionally, manufacturers can leverage a complete ActiveConnect reference design kit (RDK) that enables fast integration for cables, as well as wall plates, dongles and booster products that support DisplayPort.
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All devices containing the Marvell ARMADA 1500 chipset-and all OEMs that choose to implement it-have the power to run Agawi's CloudPlay platform, from smart TVs to connected Blu-ray players, set-top boxes and HDMI dongles.
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But while Sprint has been selling 4G phones from Samsung and HTC since the summer, Verizon so far has only offered a handful of laptop cards, known as dongles, which allow laptops to receive the service.
Similar to any DSS system, one of the Vertus dongles (the right channel, in this case) acts as the master to receive the stereo stream from a Bluetooth source, and then it'd throw the left-channel stream to the other dongle.
So provided that your speakers have their own power source, it's just a matter of charging these aluminum dongles up (a single charge lasts up to 10 hours), plugging them in and then pairing the right receiver with your audio source.
Implemented in a 28nm manufacturing process, the chipsets will feature significant improvements in performance and power consumption from previous generations and provide support for multiple mobile broadband technologies to deliver a best-in-class mobile broadband experience for smartphones, tablets, ultra-portable notebooks, portable hotspots, dongles and CPEs (Customer Premises Equipment).
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The front of controller features bass, treble and volume knobs, a power toggle, LED indicator and a 3.5mm auxiliary jack, while the back features a secondary 3.5mm jack, a powered USB port (allowing for the hookup of Bluetooth-enabling dongles, for example) and a toaster slot for the current and previous generation of AirPort Express routers.
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