Headphonenoun
A listening device placed or worn in the ear, usually sold in pairs
Headphonenoun
electro-acoustic transducer for converting electric signals into sounds; it is held over or inserted into the ear;
Handsfreeadjective
That can be used without using the hands, hands-free.
Handsfreenoun
A handsfree phone.
Handsfree
Handsfree is an adjective describing equipment that can be used without the use of hands (for example via voice commands) or, in a wider sense, equipment which needs only limited use of hands, or for which the controls are positioned so that the hands are able to occupy themselves with another task (such as driving) without needing to hunt far afield for the controls.Devices that are typically used for handsfree communication use Bluetooth as its wireless technology. They still require a smartphone or other device to initiate a call.