IMPORTANT USER TIPS: Please note Only the QC 2.0/3.0 standard power adapter supports this product's quick charge function.(Not included), and Please check phone's back(or case) is not attached with any iron,metal,coins,IC Cards,bank cards,magnetic absorbers and other metal objects in the charging detective area. PLEASE NOTE THAT CHARGING WITH PHONE CASE (ESPECIALLY over 4mm ONE) MAY INFLUENCE THE CHARGING SPEED OR EVEN RESULT IN CHARGING INTERMITTENTLY OR DISCONTINUED. Safe Charging: advanced Safety Features: Exclusive MultiProtect technology provides temperature control, surge protection, short-circuit prevention, and more. The wireless charger provides up to 10W fast charging to QC 3.0 / 2.0 enabled devices, 5W charging for normal Qi enabled devices.