... .MOQ:50pcs 3.Warranty:12months 4.FCC,CE.ROHS Digital MP3 Player Specifications:* OLED display,large screen and elegant picture menu * ... Phone book, E-book* Built-in FM Radio * Built-in lithium battery* Color: silver,red,pink,blue,green,black.* Built-in ... Response Range 20HZ~20KHZ Physical characteristics 1.Battery Type Rechargeable lithium-ion polymer battery2.Storage Temp* -20 ~ +553.Ambient Temp* - ...