Crispy Stylish MP3 Player Digital Sound For Exercise And Walking (Multi-Color) data cable and charger Support File Format: MP3 or WMA audio formats Music Controls: Volume up or down, previous track, next track, play or pause Connectivity: High speed USB2.0 function U-disk storage function Headphone Jack: 3.5 mm audio, Output Weight: 15 grams (unit) 35 grams (with packing)