Simple USB Slide in Backup External Power Bank Supply Charger Case With Rechargeable 3800mAh Battery Extender For Google Nexus 5 -Black External Battery Charger Case For Google Nexus 5 3800mAh Rechargeable Power Capacity Easy and Convenient to Carry, excellent design and perfect match with google nexus 5 Comes with Click Stand and 4 LED Lights Indicator for power level reminder Color: Black