GSM MODEM pool also known as "SMS cat pool" in China, USB 2.0 can be used directly into the computer usb port, for laptops,
desktops can be used. Break the rule that multi-tech can only be used in desktop computers. Built-in wireless modules can be
inserted SIM cards, simultaneously to send text messages.
desktops can be used. Break the rule that multi-tech can only be used in desktop computers. Built-in wireless modules can be
inserted SIM cards, simultaneously to send text messages.