It has Many Beautiful Colors, & of Course You Can Choose What You Like. in Addition, It is Also Very Durable & Can be Used for a Long Time. It is Very Suitable for Outdoor Activities Such as Camping, Hiking, & Other Emergency Purposes. You Can Use It to Charge During a Call. This Power Bank Uses a 20000 Mah A-grade Lithium Polymer Battery with a Maximum Output Power of 5w, Suitable for Fast Charger Compatible Smartphones, & Can Charge Many Devices Simultaneously. You Can Use It to Charge During a Call. Power Bank Can Charge Your Phone at Least 5-7 Times. You Can Also Customize Exclusive Patterns. Minimum Quantity: 100