... bag4.LOGO:embroider,or customer designs is welcomed5.Battery: 2PCS CR2023 lithium batteries6.Battery life:60-80 hours,normally can be used ... for 2-3 months;The battery can be changed,it has been sold in some stores ... benefit etc.8.Color:red,orange,yellow,green,blue.9.Battery powered,convenient for replaced.10.Instructions:push the button,the frist ...