How much do Sony headphones cost?

Sony Bluetooth headsets vary in price according to their quality and features. Two headsets that have recently been introduced into the UK market are the SBH20 and the DR-BTN200M cost å£35.90 and å£79 respectively. Whereas prices on Amazon range from å£6.99 for specific Sony mobile phones, to å£555 for the top of the range over the ear Sony bluetooth headset.