In Pictures: Extreme tech - 22 devices that go all out

Check out these 22 devices that push the limits of technology in almost every way.

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Versatile: Pioneer A3 XW-SMA3-K Speaker

What's not to love about this speaker? It's portable, it sounds great, and it has a battery that rocks on for up to 6 hours.

Pioneer says that its new speaker offers the broadest connectivity options of any Wi-Fi speaker available, and that it works with AirPlay, HTC Connect, and DLNA 1.5-compliant devices.

The A3 XW-SMA3-K features Pioneer's new "Wireless Direct" technology. Instead of using Bluetooth, it creates a Wi-Fi wireless access point so that you can stream music directly from your smartphone to the speaker, even without a traditional Wi-Fi or home network.

Pioneer says it opted for Wi-Fi’s higher bandwidth because that technology carries more audio signal and results in higher audio quality.

Pioneer A3 XW-SMA3-K Speaker | $399

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