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Mophie Juice Pack Air (iPhone 5/5s)
So many people have iPhones but are disappointed by the battery life, which, even with the latest iteration of the Apple smartphone, is still far from great. The key is simple: A juice-pack that charges the device, but without the need for carrying around extra cables and a battery pack. It clips to your iPhone 5 (and iPhone 5s) as a wrap-around case. It's relatively lightweight, but it does add a hefty chunk of bulk, so it's not ideal if you're wearing tight jeans. That said, it will keep your iPhone's battery doubled-up on charge, so you'll likely never run flat during the day again.
Lowest available price: $89.95
Amazon.com reviews: Mophie Juice Pack Air
Kensington KeyFolio Pro 2
So many business users have ditched their desktop and notebooks in favor of the ultra-portable tablet. And why not? You can do pretty much everything you can on a tablet as you can on the chunk of machinery in your laptop bag. But many still find the lack of a keyboard to be an unacceptable compromise. Enter the part-keyboard, part-case, which connects to your 10-inch tablet (the most common size, including full-sized iPads) via Bluetooth and allows you to type while you're on the move. And because it uses wireless technology, it's compatible with almost every tablet on the market.
Lowest available price: $61.99
Amazon.com reviews: Kensington KeyFolio Pro 2
Some prefer the smaller, in-ear headphones. Forget them, particularly if you're after superior sound with a retro feel. With a light coiled wire and a thick, padded ear comforter, the sound is unspeakably good — and for under a hundred bucks, no less. They've been around since the early-1990s, but these headphones still know how to kick out some seriously good sound. Though, if you're after some headphones you can make calls on, you might want to move along and keep looking.
Lowest available price: $84.95
CNET Review: Sony MDR-7506