Cobra Electronics has updated its tag in time for the CES 2012. The Cobra Tag is a Bluetooth device which syncs with your iPhone and triggers a configurable alarm if the two devices are separated beyond a certain distance.

The Cobra Tag has now been updated, and renamed the Cobra G5 in the process, to incorporate low-voltage Bluetooth 4.0, which means it can now go more than six months between charges. The Cobra G5 will cost $60.

Full Press Release can be found in engadget

So you’re the proud owner of a new iPhone 4S, or maybe you’ve saved yourself a bit of cash and picked up a now quite well-priced 3GS or iPhone 4 instead. We all know that the iPhone, at least in theory, just works – but do you need anything else for it? Cases, headphones, docks? We take a look at the offerings in each category.

Best iPhone 4/4S Case:  Pico Genie A400

The top of the range has to be the Pico Genie A400, just because it’s so much more than a case. If the iPhone is a Swiss Army Knife, the Pico Genie turns it into a toolbox, without much extra weight. As well as providing a durable, sturdy case, it includes a battery extender that gives another 3 hours’ worth of power, and most impressively of all, a mini-projector that can show whatever is playing on the screen on any flat white surface, along with 2-watt speakers for your soundtrack. This is inevitably bulky, but not as much as you’d expect: it effectively doubles the thickness of the phone.

It will set you back around £250. It’s not a bad deal for what you get, but maybe only worthwhile if you plan to use the projector part a lot. So, the perfect Christmas gift for the movie buff who spends a lot of time in a place with white walls, or for the travelling speaker or academic who wants a reliable backup for when her laptop doesn’t synch up with the provided projector.

Next Best: Case Mate. Case Mate have two offerings that are particularly good, the Tank (£31) and the Barely There (£10). The Tank is thick rubber, with a built-in screen protector, giving you maximum protection even if you have quite an active lifestyle. The Barely There, as you’d expect, is sleek and almost unnoticeable, for maximum style.

Best Headphones: Opera S5+ KLEER Earphones

The Opera S5+ KLEERs are wireless, but use an advanced digital technology that offers far clearer sound reproduction than Bluetooth can. At around £90, you’re paying the price for perfect audio, but that’s no exaggeration – the KLEERs can give you CD-quality sound reproduction, which is a little better than you need for playing MP3s. They’re interference- and drop-out-free, too, thanks to using the 2.4GHz waveband so as not to interfere with Bluetooth or Wi-Fi signals in the area. With a weight of only 22g, and a 10-hour battery life, the only drawback to the KLEERs is the price.

Next Best: Sennheiser i300 Mobile Music Headset. The Sennheiser headphones give you probably the best sound reproduction of any in-ear, wired speakers, for £50.

Best Dock: Elevation Dock

It’s not out yet, but if you find the Elevation Dock kickstarter web page and pledge $79 (£51, including UK delivery), you can have your own aircraft-aluminium, adaptable, hand-milled iPhone dock. The anodised, bead-blasted finish looks like high-end Apple products such as a unibody Macbook Pro, and the ergonomics are also perfect: the heavy weight and grippy feet mean you can undock just by picking your iPhone up, and the slot is easily adjustable to accommodate almost any size of case or a naked iPhone.

Next Best: Apple iPhone Dock. At £26, this seems like a lot compared to the far superior Elevation Dock, but it’s an improvement on other third-party docks.

The Solar Window Charger will suit hard pressed users as they flit from place to place. The XD Design Solar Window charger features a sticky pad around its solar panel so it can be attached to a window to recharge your device’s battery.

The XD charger is powerful enough to recharge a 1400mAh battery. XD Design also produce a Solar Tree charger, with nine leaves, each coated with a solar energy-absorbing material Eco-friendly, user-friendly and not too bad on the eyes either.

With the Anyroom wireless speaker you can beam your favorite music from your iPod or iPhone to anywhere in your home.

CD-quality audio is transmitted wirelessly from your Apple device to speakers throughout your home. The Anyroom delivers uncompressed audio streaming from an iPod or iPhone to the speaker via a 30-pin connecting transmitter.

Additional features of the Ion Audio Anyroom include a total 32 watts speaker output, a range of 300 yards, RCA audio input/output, and the option to expand your system with additional Anyroom units.The Ion Audio Anyroom speaker is available for $199.99.

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