85mAh earphone battery and low-power technology enable 11 hours of continuous playback. 2600mAh of high-capacity battery enables at least 240 hours of playback in alternate single mode. COWON CK11 Pro is equipped with a customized LDS(Laser Direct Structuring) antenna, exclusively designed and laser-shaped for CK11 Pro. 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. The Airoha chip with MCSync technology applied in CK11 Pro provides enhanced user convenience through an individual wireless connection of the left and right earphones where both earphones work independently without affecting each other even when you turn off or turn on one of them in Dual mode. In addition, a more stable connection is achieved through the simultaneous connection of the left and right earphones instead of a main-to-sub type connection.
Bluetooth 5.0 is twice as fast as the previous iteration and offers four times the range and eight times the data bandwidth. The double transmission speed reduces transmission time and battery consumption, and quadruple range allows seamless connections up to 40 meters in low-power mode. With the COWON CK11 Pro, you can freely choose between Dual Mode for listening to music or Single Mode for listening to podcasts or audiobooks. You can use your earphones in a safer manner by using just one earphone and to avoid potentially-dangerous situations while driving or walking having external sounds completely blocked out.