Cafago offers the Xiaomi Mi Wireless Bluetooth Sports In-Ear Earphones in Black or White for $53.47. Coupon code "ZPA3971MG" cuts it to $25.38. With free shipping, that's the lowest price we could find by $8. It features a rechargeable battery and comes with five sets of ear tips.
Note: This item ships from mainland China and may take two to six weeks to arrive.