Before the era of true wireless, the wired Bluetooth earbuds (a.k.a Bluetooth earbuds with cord) were once very popular. They come with a cable attached with two earpieces. The cable features mic/inline controls for calls, volume control and other functions.
Many companies discontinued this kind of earbuds, like Apple did with PowerBeats lineup but other persist - since a wire may be more convenient - it's not easy to lose like TWS earbuds, and no charging case required for charging, you can wear them as a necklace, if you have to take a bud out of your ears to talk with your friends it's much easier to let it hang around your neck.
A note that our favorite pair, the SoundBuds Slim+ have been discontinued. Wired Bluetooth earbuds will always be superior? let's find out.