COWON CK11 is also equipped with a customized LDS(Laser Direct Structuring) antenna, exclusively designed and laser-shaped for CK11. There is no interruption when on the move, whether on a subway or bus, and seamless sound is maintained in open spaces for up to 40 meters. In addition, with the latest Airoha chip, you can experience excellent quality Bluetooth earphones with many advantages such as low power support, high sensitivity reception and stable data transmission.