Features: High temperature protection,over voltage protection,electromagnetic field protection,over power protection,short-circuit protection,over-discharge protection,over-charge protection,over-current protection. The built-in Qi standard wireless charging ring matches the mobile phone with wireless charging function. It can be charged when it is put on, and the sensing distance is 8mm. Suitable for all types of mobile phones with wireless charging function. Applicable to all types of Android / iPhone phones. Automatic clamping, intelligent electromagnetic induction, not afraid of braking and rapid acceleration. 10W efficient charging, compatible with 10W, 7.5W and 5W charging modules.