Dikaou SPK via Amazon offers its Dikaou Multifunctional Alarm Clock Bluetooth Speaker for $39.99. Coupon code "OQXZRTYW" cuts it to $29.99. With free shipping, that's $40 off and the lowest price we could find. It features Bluetooth 4.2, an alarm clock, 4,000mAh battery, and LED LCD mirror design. Deal ends November 24.