Earin - The Worlds Smallest Wireless Earbuds by earin — Kickstarter
Amazon.com: EARIN A-3 - The Original True Wireless Earphones - Open Design Comfortable Earbuds - Black Aluminum Charging Case - 5 Hours of Playtime - Bluetooth - Wireless & USB-C Charging : Everything Else
Earin A-3 Review: The Tiniest, Most Amazing Earbuds Are Here