... CF/SD/USB port available High Priceperformance Ratio 17" HD LCD Bus ad playerIntroduce:1.Strong power,it can ... playing,having volume control , mechanism conversion, pattern contol,advance and retreat music list,fast-forward and quick withdraw,playing ... function.8.Automatically paying function. High Priceperformance Ratio 17" HD LCD Bus ad player Scheme usedThe commonheadrest advertising playerheadrest ...