Sony’s latest DRC-BT30P Series is their Bluetooth handsfree line that offers you freedom from the tyranny of cables and wires, as it enables you to plug in a compatible headphone of your choice while sending/receiving audio signals via a Bluetooth connection, which is more or less a staple in most cellphones these days, making it a no-brainer which device you should use it with. Hopefully the battery life is decent enough to last for double digit hours, otherwise it might not be worth picking up, especially for frequent travelers.