Specifications:
<br />Product type: round shape waterproof MP3 player
<br />Supported protocols: BR6199   MP3, WMA
<br />Supported system: Windows/ Mac OS 
<br />Power supply: built-in rechargeable lithium battery
<br />Memory: 8GB
<br />Music playing time: about 4-6 hours when fully charged
<br />Working temperature: 0   ~50   
<br />Frequency response: 30Hz- 20 KHz
<br />Supported music format: MP3, WMA+ FM
<br />Charging time: about 2 hours
<br />Waterproof level: IPX8
<br />Display screen: no
<br />Compatibility: USB 2.0
<br />Product size: 58 X 18 X 18mm/2.28 X 0.71 X 0.71"
<br />Net weight: about 28g
<br />Gross weight: about 116g
<br />
<br />Included:
<br />1 X MP3
<br />1 X Charging Cable
<br />1 X Pair of Earphones
<br />1 X Silicone Cover
<br />1 X Silicone Band