SIM800F RS232 Board GSM/GPRS Modem
SIM800F is a complete Quad-band GSM/GPRS solution in a SMT type, which can be embedded in the customer applications.
SIM800F supports Quad-band 850/900/1800/1900MHz, it can transmit Voice, SMS and data information with low power
Siemen MC55i Modem with Earphone USB Port
LM003 3G HSUPA USB modem is an unlocked 3G modem
SIMCom Sim7100E module
With SOS Call button and tow-way voice function