Features: [Full-automatic Charging + navigating]:Electromagnetic induction design,you just need put down your phone,it will charge automatically.It will be locked by loosing with one hand. [Safe and intelligent to charge quickly]:Not afraid of hurting the phone.Quality copper-core large coils offer uninterrupted power in bumping roads. [Multi-functional protection for safe charge]:High temperature protection,Over voltage protection,Electromagnetic field protection,Over power protection,Short-circuit protection,Over-discharge protection,Over-charge protection,Over-current protection [High-quality，firmly hold]:The interior triangle structure is upgraded to provide smooth linkages with stuck conditions.Even if road is awful, it doesn't shake.Bump up and down,left and right,front and rear，lock the smartphone firmly.