E&C Store via Amazon offers the EnacFire Mini Wireless Bluetooth Earbud for $23.99. Coupon code "I3OKVZBS" cuts that to $17.99. Plus, Prime members receive free shipping. That's $32 off and the lowest price we could find. (For further comparison, we saw an older model for $15 in June.) This earbud features Bluetooth 4.1, a microphone, rechargeable LiPo battery with up to six hours of music per charge, two wireless magnetic USB chargers, three sizes of eartips, and carry case. Deal ends October 31.

Note: This deal is for a single earbud.