Featuresr durable polycarbonate outer shell in matte finish for comfortable grip and shock absorption high grade inner flannelette for scratch resistance and help to stick with the back of phone more firmlyr free from only one lighting adapter this smart for iphone 7 case featuring with bluetooth 41 can convert your for iphone 7 audio to your headphone via 35mm aux jack adapter support hsp hfp a2dp avrcp make sure great sound quality and clear callsr built in lithium polymer bat