1. Dual SIM Dual Standby Power Case for iPhone 4 4G
2. Support GRPS&MMS with 1200mAh Battery
3.30pins transmission interface

1. Fashional Design for more thinner and lighter
2. Dual SIM Dual Standby, Support both WCDMA & GSM, Quad Bands optional for GSM Network.
3. Keeping IPHON 4 Charge Connector, 1 Cable charger 2 phones at the same time, Total Power Capacity can be reached to 2800 mAh
4. Switch easily power between 2 phones, Charge each other anytime anywhere
5. Approaching to 91 mobile software W/O disassemble
6. Share contacts and files
7. Software runs Steadly and smoothly
8. Safeguard for your iPhone 4

Tech. Info.
Quad GSM network: 900/1800 & 850/1900
Air Talking Time: 720 Min.
Standby Time: 336 H.
Battery Capacity: 3.7V/1200 mAh
Input/Output: 5V/500 MA
Dimension: 125(L)*58.5(W)*14.8(T)