... be customer's size and color 4.OEM, ODM welcome portable charger power bank Product size: 102*31*31mm Product weight ... Type: lithium-ion polymer batteryAdvatage: safe, efficient, durable electric power, easy to carry and removal, useful for all usb device, automatically ... ,Iphone,MP3,MP4,PSP,Camera; Color: black, white, red, pink portable charger power bank