| 摘要 |
A headphone, earphone or ear bud system features headphones, earphones or ear buds attached to retractable cords in combination with a retractable cord with a jack for connection to a sound generating device. A device for retracting the cords attached to the headphones, earphones or ear buds, and a device for retracting the retractable cord with a jack are both fixed to a lanyard or necklace that can be worn around the neck of a user of the device. |
