OnePlus via Amazon offers the Audbum IPX7 Bluetooth Wireless Headphones in Black or Red for $29.99 $25.99. Coupon code "FVGOSWA6" cuts the price to $15.89 $13.77. With free shipping, that's $14 off list, tied with last week's mention, and the lowest price we could find. It syncs to two devices and features up to 12 hours of audio on a one-to-two hour charge. Deal ends June 14.