Not for llong journeys as they would need recharging, but maybe for short journeys if they are like the ones I have used here. Again the one I use have a transmitter that plugs into the phones jack on the device and draw power for the transmitter from the device. Thank You, David L. Bailey baileydavidl62@xxxxxxxxx -----Original Message----- From: guide.chat-bounce@xxxxxxxxxxxxx [mailto:guide.chat-bounce@xxxxxxxxxxxxx] On Behalf Of clare moulds Sent: Friday, July 15, 2011 11:36 AM To: Guide Chat Subject: [guide.chat] In Reply To: [guide.chat] to david headsets Hi Carol I know this one's for David but I can answer the question so hope you don't mind. The cordless headphones can't be used in a car on long journeys they can only be used in the house and around the house as far as I know. I hope I'm right here David. Love Clare xxxx