Mutual induction speaker box Mobile Music for all mobile, tablet PCs, which are based Play with Music iPhone 4 iPhone 4s iPhone 5 / Samsung S2 S3 S4 Note 2 / Nokia / Sony / HTC / LG / Blackberry / Motorola / MP3 / MP4 iPad - Black (Personal Computers) 4
Mutual induction speaker box Mobile Music for all mobile, tablet PCs, which are based Play with Music iPhone 4 iPhone 4s iPhone 5 / Samsung S2 S3 S4 Note 2 / Nokia / Sony / HTC / LG / Blackberry / Motorola / MP3 / MP4 iPad - Black (Personal Computers)
Use the vibrations and amplify them with mini-speakers, he had to think, and it's very convenient. However careful to position the phone to get good sound.