Newegg offers the GOgroove SonaVERSE BX Portable Stereo Speaker, model no. GGSVBX0110BKUS, for $29.99. Coupon code "0301STKSG02" cuts it to $16.99. With free shipping, that's tied with our mention from three weeks ago and the lowest total price we've seen. (It's also a current low by $8.) It features a 3.5mm jack, SDHC flash card playback, and USB. It's compatible with most smartphones, tablets, MP3 players, and other portable devices.