Product Instruction Appellation： MP3player Model： YDM801 Main Features 1、With ?five in one? function including:MP3、U disk、repeat、DVR、FM 2、The songs and recording documents in MP3 format 3、Built-in FM frequency and seven color backlight 4、Can be used as USB disk, no driver installation required except Windows 98 5、High speed USB1.1 interface: forwarding speed 3.2Mbps,download speed 2.6Mbps 6、Built-in MIC, two kinds of spot recording for your choice 7、With A-B repeat function 8、Five voice effects for your choice: POP、CLASSIC、JAZZ、ROCK、NORMAL Technical Specifications Built-in capacity 128M/256M/512M FM range: 87.5MHZ-108MHZ Power Supply: 1.5V Built-in capacity: 64M/128M/256M SNR: 90DB Transfering speed: 6.4MBPS Earphone output:: Left/right 12MV Dimension: 91mmx35mmx26.5mm Package Parameter Giftbox size: 175mmx140mmx55mm N.W: 33g(Not contain Battery) G.W: 336g（approximate） Accessories AA alkalescence battery, USB connect cable, Earphones, Driver disc, Specification manual, MIC cable.