adjustable head circumference: Adjustable headband, easy to take off. beautiful and fashionable: Gold plated twin magnetic wireless headphones, exquisite pattern, beautiful and unique, suitable for different occasions. durable and reliable: Strong and durable, the charging compartment is easy to carry and store. pleasant experience: These are made from soft protein leather, tightly conforms to your skin and they will not cause discomfort during sleeping. 0.1 pound lightweight headphone with perfect body-contoured fit is made of ABS+PC material to let you feel as nothing around the neck. With sweatproof technology. Equipping with 10mm dynamic speaker systems and noise cancelling technology, this wireless neckband headphone delivers HD premium sound for hands-free calls, music, movies and so on. Kandy around 2km deliver free