iPhone 7 series smart protective case, use Bluetooth connect the phone , and via 3.5mm earphone jack output audio, can make your iPhone 7 perfect suport 3.55mm traditional earphone !Throw away the adapter ,CSR top audio decoder chip, enjoy perfect stereo sound!Spasifications:Music Player

iPhone 7 series smart protective case, use Bluetooth connect the phone , and via 3.5mm earphone jack output audio, can make your iPhone 7 perfect suport 3.55mm traditional earphone !Throw away the adapter ,CSR top audio decoder chip, enjoy perfect stereo sound!Spasifications:Music Player ControlAdjust the volume and switch the song by buttons on the case no need to operate through the Phone.Lightning charging interface support Apple’s original data cable , Do not need to prepare extra charging cable.Class A new type of polymer batteries fully loaded 420mAh lasting and durable ,support users to listen to music about 30 hours ,40 hours of talk, standby up to one month!Listing music for 4 hours after charge 15 minutes!