Featuresr wpc qi compliant wireless charger allows to charge for any qi enabled device such as nokia 920 nexus 45 htc 8x and so onr adopts smart identification system while its transmitter and receiver unit adopts uart universal asynchronous receiver transmitter encrypted transmission control signal which is stipulated by wpcr uses a ring of non slip rubber separately on the surface and at the bottom for stable and safe placement of your phoner smart chips control assures its long te