Most smartphone users tend to focus on the sheer processing power, screen quality, and other hard-core specs offered by their handsets. Often overlooked is a phone\'s wireless Bluetooth capability, a technology found in virtually every modern handset. As someone who uses Bluetooth gadgets daily, I\'d frankly feel lost without my handy assortment of hands-free mobile toys. Bluetooth is also evolving into a respectable consumer technology; Bluetooth 4.0 is beginning to ship in multiple devices, with many more on the way. Gone are the wayward days of tedious setup procedures and pairing problems. But what can you actually do with Bluetooth? In a word: plenty. Take a look at this list of recently reviewed Bluetooth accessories that help your smartphone be all that it can be. For chatterboxes the convenience of a wireless headset is undeniable, but many devices are large, conspicuous, or just plain ugly. If discreet phone calls are high on your list, it\'s hard to beat the Elite Sliver\'s minute size, which is barely noticeable. The headset also comes with its own travel case/charger that features a backup battery pack. Read the full review of the Motorola Elite Sliver. If you spend hours talking on the phone for business, often from locations with lots of distracting background noise, the Jabra Supreme is worth a look. Its swinging boom mic design certainly isn\'t small, but it does help this headset deliver excellent call quality aided by an accompanying smartphone app and aggressive noise cancellation. The Supreme also comes with an impressive set of voice commands. Read the full review of the Jabra Supreme. This bundle from Jawbone combines the excellent noise cancellation, flexibility, and large feature set of the Jawbone Icon headset with tight PC connectivity. Users can chat hands-free via computer using a VoIP service like Skype or listen to PC-based audio, then seamlessly answer phone calls from a handset as needed. Read the full review of the Jawbone Icon + The Nerd. Want more? Then see our current list of best Bluetooth headsets. It\'s hard to find stereo Bluetooth headphones that are comfortable, provide a good audio seal to shut out ambient noise, and are attractively compact. That\'s why the Bluetooth Tags from Outdoor Technology are a real gem. Made to hang around the neck like a pair of military dog tags when not in use, this gadget connects to phones without a tangle-prone wired connection. A built-in mic and physical controls let you avoid fumbling for your handset to answer calls, and the Tags also come with plastic clips for securely attaching to ears. Read the full review of the OT Bluetooth Tags. Here\'s another great headphones choice. The LG Tone BHS-700 has a unique behind-the-neck design with wired earbuds that magnetically click into special pockets when not in use.The flexible U-shaped neckband features a microphone, vibrates when calls come in, and has easy-to-reach volume and track playback controls. The headset is also so comfortable you might forget you\'re wearing it. Read the full review of the LG Tone BHS-700. For more, be sure to view our roundup of favorite headphones. One of the slickest portable speakers we\'ve seen, the Jambox is hard to justify for those on a budget. Still, this compact stereo Bluetooth speaker has recently dropped in price thanks to the new Big Jambox. It also sounds great, connects to phones and laptops wirelessly, and even includes a microphone so you can answer calls as they happen. The Jambox has an onboard battery, too, which is rated to run the device for 8 to 10 hours. Another option is the Qmadix Iharmonix Q-I-Sound, which can produce stereo sound wirelessly. Read the full review of the Jawbone Jambox. For more, check out our roundups of the best portable Bluetooth speakers and best portable speakers for less than $100. Imagine if Apple\'s iPad Nano ran Android, was rugged and sweatproof, and came with pretty much every wireless connection available. You\'d have the Motorola MotoActv. Designed for people serious about their fitness, this tiny device boasts GPS for tracking runs, bike rides, and hikes in real time; Wi-Fi to talk to home networks; and Bluetooth for linking with compatible Motorola smartphones. Workout performance data such as speed, time, and distance is uploaded automatically for later review online. The MotoActv can connect to other fitness sensors on the market like heart rate monitors, and it will also support the new Bluetooth Low Energy technology, which future accessories are expected use. Read the full review of the Motorola MotoActv.