About this itemDisplay2.1" Edge to Edge DisplayMaterialMetal + Tempered GlassTypical Usage Time5-7 DaysWaterproofIP68CompatibilityAndroid 5.1 and abov..
About this itemBottle Capacity16oz(460ml)Bottle MaterialPCTG food gradeBase Shell MaterialABSBattery Type / Capacity18650/4000mAhMotor Speed20000 RPMC..