As one of its daily deals, Groupon offers the Pyle Sound Box Splash-Proof Bluetooth Wireless Speaker in five colors (Blue pictured), model no. PWPBTA70, for $39.99. Coupon code "LABOR10" cuts it to $35.99. With free shipping, that's the lowest total price we could find by $26. It features a 60 to 20kHz frequency response, metal handing hook, and push button controls. Deal ends today.