Aptoyu via Amazon offers the Aptoyu Portable Bluetooth Speaker for $16.99. Coupon code "GOP7M8GF" cuts it to $11.99. With free shipping for Prime members, that's $4 under our September mention and the lowest price we could find by $9. It features a 24-hour playtime, 33-foot Bluetooth range, built-in microphone, and 10-watt dual-drivers.