【EASY INSTALLING】Slowly put the edge of the ear pad into the gap of the earphone, you can stretch it hard, and you can refer to the seller management video to know the installation
【Service promise】Please feel free to contact us for replacement or refunds if there are any issues with your purchase
【Quality assurance】All defean are produced under strict quality inspection, and come with a 12-Month worry-free warranty and free lifetime technical support.