Ascent Rowkin

It is smallest earbud which is compatible with ios and Android devices ,it has Bluetooth 5.0 functionality.
It has sweatproof and waterproof speaker grill ,it features LED notification and playback /call control access.
You can locate your earbuds by using "find my rowkins" feature .
It can give you 3 hours of play time and can be rapidly charged for 5 mins which gives you 2 hours of play time.
PROS:-
Pros
-> Impossibly small, sleek-looking
-> Battery case can be used to charge other USB devices.

Note:- pictures were taken from official website .