Omaker Official via Amazon offers Prime members the Omaker M1 Ultra Portable Wireless Bluetooth Speaker in Blue, model no. M1BU, or Hot Pink, model no. M1RO, for $19.99. Apply coupon code "VBM26USJ" to cut the price to $15.99. With free shipping, that's a buck below last month's mention, $64 off list, and the lowest total price we could find. (Non-members can spend $35 to qualify for free shipping; otherwise, shipping adds $5.58.) It features Bluetooth 3.0+EDR, 4W driver, 3.5mm jack, and up to eight hours of playback.