Specification :

1500mah External Backup Battery Case for iPhone 4

Features :
1. Battery Extender and Case in One
2.Twice the Power
3. Advanced Battery Technology
4. 4 Light LED Battery Status Indicator
5. Quick Speed
6. Soft-Touch Finish
7. Pass-through USB
8. Acoustic Sound Enhancement

Specification:
• Product Dimensions: 5.07 in x 2.51 in x 0.68 in; 2.5 oz
• Battery Capacity: 1500 mAh
• Estimated Shipping Weight: 1 lbs
• Product Category: Cell Phone External Battery
• Product Compatibility: For Apple iPhone 4
• Package Content Included: Battery, USB-micro cable, User’ s Manual

Juice Pack Air for iPhone 4:
• Standby Time: Up to 270 hours
• Talk Time: Up to 6 hours on 3G | Up to 12 hours on 2G
• Internet Use: Up to 5 hours on 3G | Up to 9 hours on Wi-Fi
• Audio Playback: Up to 36 hours
• Video Playback: Up to 9 hours