The Essentials Dual Wireless Qi charger offers 10 W fast charging wireless output for 2 devices at the same time. The wireless charger is Qi certified to have full compatibility with Qi enabled smartphones and others. The dual charging design lets you charge 2 devices wirelessly at the same time and is easy to use with just plug n’ play. We recommend using a USB charger with minimum 12 V output, in order to achieve the full charging speed of the wireless charger.