SIM800A mini with high-performance industrial grade GSM / GPRS module: SIM800A working frequency band: GSM900 / 1800 MHz Can achieve Voice telephone, SMS (SMS, MMS), GPRS data transmission function (transparent mode, domain name resolution and IP mode), it also has decoding (you can identify the other button), TTS (optional local voice transmission) and Bluetooth (optional). Hardware design in the official design to be optimized, the use of an efficient switching power supply, SIM card using the main micro cover, more solid quality.


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