You can now easily switch between SIM cards on your mobile phone without needing to physically replace each card every time. The 2 SIM cards are combined into a single SIM card and inserted into your mobile phone.
You can switch between each card by selecting it from the phone menu. This model does not require the phone to be turned on and off

This product is compatible with:
Nokia 3310, 3315, 3330, 3350, 3410, 5510, 6210, 7789.
Motorola: T190, T191, T189