Amazon.com: Customer reviews: Wireless Earbuds with …

The Rumixi H01 meets the criteria even though works somewhat differently. In other headphones each ear would show up as its own Bluetooth device (for example, E18 would show up twice in my iPhone Bluetooth settings, one for left and one for right). With this device I only have to pair one of the ears, and the other ear is also automatically paired.

https://www.amazon.com/5-0-Bluetooth-Headphones-Case-Easy-Pairing-Microphones-IPX7-Sweatproof/product-reviews/B0876538NH?pageNumber=3