Al principio el conector 3. I thought the small dashes would let water in, but they seem to be just an exterior design. All in all, this is a good improvement on an already fine charging station. It came with everything needed for starting to use it. Some of the notable improvements:1. so the inside arch of my foot is high. Amazing shoes! I really love this- it charges way faster then any other wireless charger I have ever owned. My therapist recommended these shoes. Un saludo