Either of a pair of ear coverings often attached to an adjustable headband and worn to protect the ears especially against the cold.

耳套一对套住耳朵的物体，通常附在可调节的头带上用来保护耳朵，尤指用来御寒的。

youdao

Wax Bee is a comfortable Bluetooth stereo headset with an adjustable headband, that lets listen to your music on the go, while never miss a call, thanks to its built-in microphone.

ENGADGET: BeeWi's Ghost Bee Bluetooth headphones also stream music to your stereo (hands-on)

The headband is adjustable and the earcups rotate inward, making it easy to wear them around your neck.

FORBES: Astro's Dead Space 3 A30 Audio System Review

With adjustable optics, a more supportive headband and a prominent 7-inch display, it easily outshines its hand-built predecessor.

ENGADGET: Oculus' Palmer Luckey and Nate Mitchell on the past, present and future of the Rift