Wireless headphones can be split into three different categories: wireless earphones connected via a neckband, wireless on-ear headphones, and wireless over-ear headphones – all are battery-powered and use Bluetooth to connect to your smartphone, laptop, portable music player, or even your turntable.
For wireless over-ear and on-ear models, you simply lose the wire connecting them to your device – otherwise, they look pretty much the same as your regular pair of wired cans, and give you the noise-isolating prowess of over-ears without the need for cumbersome wires to connect to your device.
Wireless in-ear models, earphones, or earbuds (depending on your preferred vernacular), have a neckband connecting each earbud, making them ideal for runners who want the freedom of a wireless connection with the security of a wire keeping their earbuds firmly around their neck.
True wireless earbuds on the other hand, have no cord whatsoever; no wires to get caught in your zipper, and nothing to keep each bud connected to each other. For some, this means true freedom; for others, untethered true wireless means constant danger of losing their expensive audio kit down the drain.