Description Smaller size than SIM908. Bluetooth firmware upgradable but we only provide firmware, no more technical support, please try this yourself. 5-18V power supply supported. USB port can be very convenient. Serial USB TTL compatible for 2.85V, 3.3V and 5v signal GSM, GPRS, GPS {text messaging, data transmission, positioning} triple function. Quad-band communications, globally available. , AT command operation, can support SMS, phone, GPRS data, GPS data is automatically output, embedded TCP protocol to support transparent mode and command mode, supports HTTP protocol to support DTMF decoding, support MMS, support recording function, and so on. IPX antenna connector Reserved USB port (not solder) available for changing firmware. So you can update for bluetooth. Shipment is board only, without antennas or any other accessories. Board dimension 54*43 mm. Buck order price $15.5 for more than 30pcs Accessories need to be purchased alone: IPX – SMA convert cable GSM antenna GPS antenna Documentation please see on this page. GPS/GNSS Series: SIM808 ED20 GSM/GPRS Series: SIM800C A202
