Features:

Built in 5200mAh rechargeable lithium ion battery.LED display to indicate exact battery level percentage .Auto turn on to charge and auto shut off to save battery life .2.1 max output, quickly and fully charges all iPhone models twice .Compact design for maximum portability .Compatible with iPad/tablets, iPhone/smartphones and most USB powered devices

Technical Specs:

Product Dimension: 7.4 x 5.5 x 2.4 cm

Weight: 4.84 ounce

Compatibility: All Smartphones and Most Tablets

Warranty: 1 Year Warranty

Compatibility:

iPhone 5S/5, iPhone 4S/4, iPhone 3GS/3G, iPhone

iPad Air, iPad mini with Retina display, iPad mini, and etc

Samsung S5, Samsung S4, Samsung S3, and etc

Galaxy Tab 4, Galaxy Tab 3, and etc

HTC One (M8), HTC One (M7), and etc

Most USB powered devices

Benefits:

Pre-charged and ready to use out of the box

Long talk time

Provides power when you are unable to plug into wall outlet/computer

Quick Recharge via MicroUSB Port and USB cable is included

Long standby time for up to 6 months

Retains true battery integrity for the life of product

Will charge devices quickly and fully over and over

Don’t be fooled by low priced power banks, Macally’s uses long lasting quality batteries that's built to last for years