QQ-Tech True 11200mAh External Battery Pack High Capacity Mobile Power Bank Backup 2 USB Charger with Digital Display Calendar/Temperature/Battery Level for Tablets: Nexus 7, Galxy Tab and various Apple, Samsung smartphones (most 5V USB devices) - White World first power bank with digital calendar temperature and battery level display; True super high capacity 11200 mAh High Capacity, add 5 to 6 full charges or add 40 to 50 hours talk time to your iPhone 5/ 4S / 4G / 3GS; 3 charges for Samsung Galaxy S3, full charge for your ipad 2 3 4, or 400% to the battery life of most mobile phones Charge almost all 5V USB mobile phones, tablets; 4 LED indicators reveal the battery level; convenient flashlight; 500+ recharge cycles Perfect for long plane flights, road trips; carry the mobile power wherever you go; charge your devices any time any where;