Review: Amazon Tap

Amazon TapIt's hard to write a review of the Amazon Tap, the portable version of last year's Amazon Echo Bluetooth speaker, without sounding like somewhat of a hypocrite. Last year, I asked for an internal battery and a way to bring the speaker to a friend's house or the beach without carting along a power cable. (I even complained that the cable, which was six feet long, was too short.) On top of that, I wanted the Echo to sound more like the high-definition speaker that its $179 (about £