PC magnetic earphones. bluetooth transmission with neck band and autonomy for up to 7 hours. Functions: answering calls, control volume and connect to the playlist of a mobile device. Includes USB/micro USB charging cable. Supplied with non-woven pouchPC magnetic earphones. bluetooth transmission with neck band and autonomy for up to 7 hours. Functions: answering calls, control volume and connect to the playlist of a mobile device. Includes USB/micro USB charging cable. Supplied with non-woven pouch