adj.
(especially of a phone) designed to be operated without using the hands.
Oxford American Dictionary
adj.
(especially of a phone) designed to be operated without using the hands.
Oxford Dictionary
n.
a set of equipment designed to enable the use of a mobile phone without the hands: they had to answer a call using a hands-free kit
Oxford Dictionary
ph.
freedom to act completely at one's own discretion
Oxford Dictionary
n.
a set of headphones with a microphone attached, used especially in telephony and radio ... I had a hands-free headset plugged into the laptop
Oxford Dictionary
ph.
freedom to act at one's own discretion
Oxford American Dictionary