Start Sport Relax Mini Clip Light Protable USB MP3 Player Support Micro SD TF Card Music Media-Black Elegant music sound quality, perfect music enjoyment Weighing less than 30 g, simple, delicacy and fashion Play time: 4-5 hours  Built-in high energy rechargeable lithium batteries, long standby time Use a variety of operating platform WIN98 / SE/ME / 2000 / XP. LIUXCORE2.4 above version Support for multiple MP3 music format of digital music play Using USB1.1/2.0 interface, support hot plug, already inserted with both External Memory: Support up to 32GB Micor SD (TF) card ( Not Included) Can make mobile flash disk, MP3 songs or anytime and anywhere storage data About us:if you have any question,you can contact us,then we will solve it for you. We have chosen logistics faster and better way to ensure that customers receive the goods as soon as possible About us:if you have any question,you can contact us,then we will solve it for you. More surprise product sold by "START"Please pay more attention to our company-www.amazon.com/shops/start_wuvi