Tusbiko via Amazon offers its Tusbiko Mini Bluetooth Wireless Earbuds in Black or White for $39.88. Coupon code "7SG7VIKC" knocks it to $19.94. With free shipping, that's tied with our mention from two weeks ago, $20 off list, and the lowest price we could find. These IPX7 waterproof earbuds feature up to four hours of talk/listen time after a 1-hour charge. Deal ends September 20.

Update: Black is now $38.66 before coupon, $19.33 after.