... with USBSupports the calendar, time.Built-in high capacity rechargable battery, support 10 hours long play.Compact and portable, ... Music PlayerSpecifications:Color:black /red/whiteMaterial: plasticPower source: lithium battery / DC5V Music format: MP3, USB,TF card ,FM ... 80dbDistortion<0.5%BatteryExternal lithium Rechargeable BL-5C Li-Battery (2200MA)FM Frequency76---108MHZSpeaker size 110mm*90mm*35mm ...