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Earlier this year a Kickstarter project I found fascinating came around. Living in an area that experiences severe thunderstorms in summer and the occasional blizzard in winter, I'm no stranger to losing power at times, which can be annoying for anyone.

With this in mind, I bit the bullet and backed the SmartCharge product. I'm not accustomed to paying $35 for a single lightbulb, but the idea was ingenious. Essentially the bulb has a battery inside which keeps itself charged whenever the power is on. When that source no longer exists the bulb switches to battery backup and continues to operate when the switch is turned on.

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When Sony released its Xperia Z2 tablet earlier this year, they moved the goalposts in the global tablet market. The entertainment giant managed to release a serious competitor to Apple's iPad Air that redefined just how thin and light a tablet computer could be.

So how does the Xperia Z3 tablet compare to its predecessor, and what has Sony done to up the game? We go hands on to find out.

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Keeping your PC running smoothly can be a complicated, time-consuming business. There are so many important issues to consider that even expert users can struggle to monitor them all.

Iolo’s System Mechanic 14 claims it can help by cleaning up your system, optimizing settings, and then running in the background, fixing problems as soon as they appear. This isn’t just marketing spin, either, as over the years the suite has built up a very impressive feature list. There are tools to clean and defragment your hard drive, repair the Registry, find and fix system problems, tune your internet connection, even optimize running processes in real time.

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As you may have guessed from the name, the Sony Xperia M2 Aqua is a brand new water resistant phone courtesy of the Japanese giant that seems to have made repelling H2O something of a personal vendetta.

Seriously, forget the Xperia Z3, the Sony Xperia M2 Aqua has the highest water resistance-rating for a mass-market smartphone. If you regularly make business calls in the shower, there is no other phone we'd recommend more highly.

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Ultra-portables, tablets, Ultrabooks and hybrids may be great feats of miniaturization, but if you want serious power a larger device will be a necessity. Anyone serious about the quality and resolution of their entertainment will need a desktop replacement of some sort. Gigabyte's P25X v2 is definitely in the latter camp, with its 15in chassis packed full of processing and graphics power. But its price isn't as hefty as its chassis.

The P25X v2 is not exactly subtle in its styling. It boasts a bright yellow lid with chrome effect edging and hinge, although the remainder of the system is a much more sober black. At 2.8kg, it's not exactly lightweight, although this is par for the course with the 15in chassis format.

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We seem to have had something of a run on Lumsing products recently, but the focus has been on power -- both in-car and portable. Now it's time for something a little different from the same company: a wireless Bluetooth speaker. It can be used with phones, tablets, laptops and anything else that chucks out a Bluetooth signal; actually, there's a 3.5mm jack, so there is a wired option too. As this is, primarily, a wireless speaker, it should come as no surprise that it features a built in rechargeable battery. Charging comes via a USB port which you can connect to either a computer or a phone charger.

Let's skirt over the fact that the instruction manual provided with the speaker has a spelling mistake ("Propeht" rather than Prophet) and look at what the Prophet has to offer. This is a budget speaker, but its looks don’t give this away. The disc shape hides two speaker cones, surrounded by a silver trim. Smack in the middle of the speaker grill is a play/pause button which allows for music playback control, and also doubles up as a pick up/hang up button for your phone -- as well as play music from your phone, the Prophet can also be used to make (very loud) hands-free phone calls thanks to the built in microphone.

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Earlier this year, Microsoft successfully blurred the lines between laptop and tablet with the Surface Pro 3. Yes, the company had attempted it twice before, but the small screens on the previous models made it a less-than-ideal laptop replacement. On the Surface Pro 3, stretching the screen to 12-inches and making it lighter finally achieved the portable productivity nirvana of which many of us dreamed.

While this was great for many, others like me had a dilemma; we do much of our computing at home. Sure, I need a portable machine for travel and working in, let's say, Starbucks; however, at home in my office, I want to use a big 27-inch screen, keyboard and mouse. This was achievable by using Bluetooth peripherals and connecting my monitor directly to the Surface. Sadly, this proved clunky and I needed a better way. Supposedly, that better way is now available with the official Docking Station, so I bought it. The question is, how is it?

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A few years ago, the very concept of a three port extender for your car's cigarette lighter socket would have caused some raised eyebrows. Even if you were in a car packed full of chainsmokers, three lighter sockets would be deemed excessive.

Of course, these days, the lighter socket is less for lighting cigarettes and more for powering devices, so Lumsing's power splitter serves a clear purpose.

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I charge my iPhone 5s every night -- it's pretty much a standard routine. Although people moan about the iPhone's battery life, I have no complaints. In fact my old Samsung Galaxy S III needed charging more regularly. But every so often a little extra battery boost is required, which is fine if I'm at home, but less convenient when I'm out and about (and I have no interest in being a wall hugger). This is where an external battery pack can come in handy.

Lumsing's PBJ-6200 Power Bank has already proven to be a life saver in the couple of weeks I've had it. The device is roughly the same dimensions as my phone -- 4.88x 2.64 x 0.51 inches (124 x 67 x13 mm) -- and has a 6,000mAh capacity, which is enough to charge my iPhone about three times (a Galaxy S4 twice, or an iPad mini once).

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While I'm primarily an Android user, I'll dip my toes in the water of iOS and Windows Phone from time to time -- you have to check out what's going on elsewhere after all. A while back I tried to switch to the Nokia Lumia 928, but found Windows Phone too restrictive. But I'm open-minded... I'll give things a second crack of the whip. So now it's time for me to take look at the Lumia 930.

I am impressed with the look and feel of the handset. It's a very solid device that feels robust enough to be used as a tool for breaking and entering should the need arise. It feels like a high-end phone, it oozes quality. But it has Windows Phone 8.1 installed, and that's a massive problem.

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This summer, I took a break from Chromebook, to conduct an experiment going "Microsoft All-In". After using the browser-based concept for about two years, I even gave up Google products and services for awhile. What terrible timing! There's a sudden shift in the winds, as Chromebook heads away from x86 and towards destination ARM and competing Intel processor Bay Trail. These lower-power consumption, lower-heat producing chips also illuminate new Chromebook form-factors: 13.3-inch displays. The first of these -- from Acer, ASUS, and Samsung -- started shipping in June, July, and August. I tested the ASUS C300.

Like the other two manufacturers, ASUS offers Chromebooks with 11.6-inch and 13.3-inch screens. I review the larger laptop. Both compete with the ARMs by adopting Intel’s Bay Trail processor, which offers similar benefits and performance pitfalls. There's nothing exceptional about the C300, which strangely is a benefit. The laptop's attributes are quite balanced -- design, performance, and price.

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Argente Utilities is a one-stop PC maintenance suite with tools to clean, optimize, repair and generally improve your system's speed and reliability.

It's a relatively lightweight, portable package, arriving as a 7.5MB zip file, and there's no adware or similar hassles: just a gentle "donate" screen which you can dismiss forever with a click.

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The Lenovo Yoga 2 is not to be confused with the Yoga 2 Pro. Although the basic principle of a notebook with a screen that flips over to turn the device into tablet is the same, the specification is markedly different. Just for starters, this is an 11.6in device rather than 13.3in -- but what's inside is much more value-oriented as well.

Instead of a processor from Intel's Core range, our Yoga 2 sample came with a Pentium N3520. This is part of Intel's Silvermount microarchitecture generation, in particular the Bay Trail-M family, which means it's actually from the same line as the Atom processor, despite the Pentium brand name. The N3520 has a nominal frequency of 2.166GHz, but a single core can rise to 2.42GHz in Turbo mode.

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If you're specifying a notebook for your kids or your school, the attractive world of ultra-portables probably won't be top of your list of possibilities. Robustness, durability and value are far more likely to be your chief considerations. Dell's Latitude 13 Education Series 3340 is designed specifically to satisfy this kind of need. It's clearly built to last, and has both a specification and price that should appeal to the target audience.

The Latitude 3340 is not going to win any style awards, but it is very sturdy. The dark gray plastic chassis feels tough and is surrounded by rubber edges on the base and screen bezel. The hinge is similarly solid, and rotates 180 degrees so it can lie flat on the desk alongside the base, although the screen isn't touch-enabled so this facility is less useful than it could have been.

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The Sony Xperia T3 updates the Xperia T2 which, er, was an update to the Xperia T. Except that's not quite how it is. When the T came out early last year it was the flagship phone for Sony. It even had a much talked about spot in a James Bond movie. The flagship handset line from the Sony range is now the Z series, and the Z3 is due very soon. The T series is now the mid-range in Sony's stable, and the Xperia T3 is priced at £299 online at Sony's website.

Sony has worked hard to consolidate design across its handset range, and that's evident with the Xperia T3. The monolith appearance with squared-off corners and distinctive button design and placement is carried through from the Z range, though the price differential has had a clear effect on materials. Where the Xperia Z2 has a glass back that I found rather too reflective and slippy, the T3 has a more usual rubbery finish on the back that's easier on the hands and doesn't act like a mirror for the narcissists among us.

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