External Auxiliary Battery of 4,000 Mah. Made of Recycled Aluminium, a Material with Almost Infinite Recycling Possibilities, Keeping Its Original Properties & Consuming Less Energy in This Process. with 2 USB Outputs & Dual Input & Output Connection Type-c. LED Charger Status Indicators & Type-c Charger Cable Included. Available in a Wide Range of Colours & Presented in an Individual Kraft Box, with Instruction Manual in English & Spanish. Colours: Black, Red, Silver, Blue. Minimum Quantity: 10.