strong and lightweight with good waterproof protection
listen to MP3 or make/receiving phone calls in waters

strong and lightweight  with good waterproof protection 
has feature of waterproof, dustproof ward and sand proof, rain and snow proof
suitable for outdoor, beach, swimming pool, and under water outdoor activities
strong and lightweight  with good waterproof protection 
has feature of waterproof, dustproof ward and sand proof, rain and snow proof
suitable for outdoor, beach, swimming pool, and under water outdoor activities
listen to MP3 or make/receiving phone calls in waters