-External back battery case for iPhone 4
-Double battery life for iPhone 4
-Slim,lightweight
-perfectly fit for iPhone 4G
Port: shenzhen
Minimum Order Quantity: 50 Piece/Pieces sample acceptable
Supply Ability: 1000 Piece/Pieces per Day
Payment Terms: L/C,T/T,Western Union,paypal
Contact SupplierPackaging Detail: gift packing
Delivery Detail: sample :2-5 days.big order :5-10 working days
External Backup Battery Case For iPhone 4 4G
1. Almost Doubles Battery Life
-Up to 270 additional hours standby time
- Up to 6 additional hours talk time on 3G; 12 hours 2G
- Up to 5 additional hours internet use on 3G; 9 hours on WiFi
- Up to 36 hours additional audio playback
- Up to 9 hours video playback
2.Ergnomic ,form-fitting fully protective impact-resistant case-and-battery in one for iPhone 4G
3.Light LED battery status indicator
4.Sleek design includes a new, soft-touch, rubberized finish and a shock-resistant band.
5.Available in cyan, magenta, yellow and black
6.External battery case perfectly fit for iPhone 4G
7.Compatible for new apple iPhone 4 G ,portable.
8.1600mAH build-in li-polymer battery, super slim for new iPhone 4.
9.Built-in short circuit.over-charge and temperature protection .
10.Rechargeble for over 500 full cycles.