waterproof mswiming mp3 1.Support MP3,WMA format 2.8-10 hours continuous play 3.USB 2.0 4.Build in high capacity Li-ion batt

Model.	Cylinder waterproof  MP3
Power format	Built-in rechargeable lithium batteries
Playing time	After listening to music with for about four to six hours
Products weight	Ontology net weight and 34g
Product size	60 mm (long) x 21 mm (wide) x 21 mm (high)
temperature	0 °C ~ + 50 °C
Frequency response	30 Hz ac to 20 K Hz ac
Support music format	MP3 / WMA
Charging time	About 2 hours/play time of 4 to 6 hours
Waterproof design	Accord with international IPX8 protection grade
capacity	1 GB / 2 GB / 4 GB / 8 GB / 16 GB / 32 GB

waterproof mswiming mp3