... x 9mm Production Description high definition OLED display USB rechargeable PedometerFunction:clock,steps,mile,calorie,alarm,metric ... batteryEL back light Anodized aluminum designFirmware version upgrade via USB NameValueBrandKYTO or customizeModelPDM-1301Colorblack ,Purple red ,green , ... ,UPS,EMS, China Post Air mailEXPRESS: around 5-7 working days to arriveINTERNATIONAL AIR MAIL: around 2-4 ...