Giz-Promo via Amazon offers the GOgroove BlueSync BX Bluetooth Portable Speaker for $24.99. Coupon code "BSBX20OF" cuts it to $19.99. Plus, Prime members bag free shipping. That's the lowest price we could find by $10 and the best deal we've seen on this model. It features a frequency response of 80Hz to 20kHz, NFC pairing, and 50mm drivers.