Diving Water Swimming IPX8 Waterproof 4GB Cylinder Shaped MP3 Music Player Support FM Radio for Swimmer (Pink) IPX8 water resistance standard Waterproof MP3 player and earphones designed for swimming spa,and water sports(Waterproof design) Memory Size:4GB FM frequency range is 87.5 - 108.0MHz, 20 radio programs preset Battery:2 hours charging time, 8 hours continuous operating time when fully charged