The DR-BT100CX in-ear headphones are the perfect partner for your MP3 player or mobile. USB charging and cord free styling make them easy to use, whilst three sizes of silicon ear bud ensure superior sound quality can be enjoyed in comfort. The DR-BT101 Sony headphones are the ideal choice. Enjoy rich, clear sound for hours on end through the headphone’s 30mm neodymium driver; twelve hours of playback means there is no risk of running out of power on long journeys…