Sony NWZ-W273S 4GB Waterproof Walkman Bundle with Sony WMSLV100 Walkman Case 4 GB of capacity for around 1000 to 2000 songs Waterproof design for worry-free use 3 minute quick charge provides 1 hour of use Full charge provides up to 8 hours of battery life Bundle includes white Sony NWZ-W273S Waterproof Walkman and black Sony WMSLV100 Walkman Case