To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyses reviews to verify trustworthiness.
The two wires connected to inside has no support. They are very fragile, wires that are soldered to the board are very small wires that have no support. it takes very little for them to pull loose, I cannot believe Amazon approves of this trash! and the cost is ridiculous!