Brand Sale USA via Amazon offers Prime members the Hype Hi-Fi Bluetooth Stereo Speaker / Speakerphone in
Red or Black, model no. HY-523-BT-BLK, for $14.99 with free shipping. (Non-members can spend $35 to bag free shipping; otherwise, it adds $6.78.) That's the lowest total price we could find by $18. It features a DC 5V rechargeable battery, 3.5mm jack, built-in dual microphone, USB charging cable, 33-foot operating range, and more.