People always askme to recommend a portable Bluetooth speaker, and I reflexively mention the same one every time: the UE Boom. The latestversion of this portable powerhouse, the UE Boom 2, provides damn near everything most peoplewant in a speaker. It sounds great, the battery lasts half a day, and you can bring it anywhere. It’s even waterproof and mudproof, so you can take it rafting. All that for $200. But that’s still too much Bitcoin for most people.

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