External Battery adds Dual Sim skills to your iPhone
Have you ever get envy at those fake iPhones (we locally call them China iPhones)?. One of them have a built-in radio and supports dual sim card, they even have a TV tuner built-in to them. My buddy have one, bought at about 6k pesos (about $130) he often taunts my iPhone saying “Does your iPhone have this?”. The iPhone may not have dual sim, built-in radio or TV but the the fake china phones interface is abysmal.
Finally, the bragging of china phones having dual-sim is over, the guys at usbfever.com created a 3-in-1 external battery with dual sim function. This is not your ordinary external battery, it gives the iPhone more juice to use on your long out of town vacation plus the ability to use two sim card so you need not to look for “the tray removing pin” every time you swap sims.
Features include the following:
- You can use one iPhone (3G / 3G s) with 2 SIM Cards
- No need to cut your SIM CARD
- STK Menu (Sim switching interface)
- Portable power pack (adds more than 24 hours of additional power)
- You can access to all ports of your iPhone 3G / 3Gs (Except the silence switch)
- Acts as a protective case to your iPhone 3G / 3Gs (made with same material used in iPhone 3G)
- Seamless interation
- To Sync with your PC / Mac even when the battery is on
- No need to take off the battery even you need to Sync your iPhone 3G / 3Gs
- To control when to have Data HotSync and when to charge
- more listed at usbfevers product page
Compatible with iPhone 3G and 3Gs, this 3-in-1 Battery Pack costs $60, and is available right now.
So this thing can really make your iphone use two sims, BUT not it DUAL STANDBY mode, you can only switch between them (not as efficient as other brand’s dual sim phones).
updated with photos


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this one do not work for 3g function, I heard Magicsim have a new model support 3g function,it supports UMTS/HSDPA/WCDMA/GSM/GPRS/EDGE.
It is Fully Working on UMTS/HSDPA/WCDMA/GSM/GPRS/EDGE even supports OS4.XX
I have had this for over a year and no issues
http://qyg-online.com/product.php?id_product=23