Detailed Introduce:
Featuring an industry-standard interface, SIM300S/340S delivery GSM900/1800MHz performance for
Voice, SMS, Data, and Fax in a small form factor and with low power consumption.
· Dual-Band GSM/GPRS 900/1800MHz or Quad-Band GSM. GPRS 850/900/1800/1900MHz
· Dimensions: 40mm*33mm*2.85mm
· Weight: 8g
· Control via AT commands (GSM 07.07, 07.05 and SIMCom enhanced AT Commands)

· Supply voltage range 3.4V - 4.5V
· Low power consumption
· Normal operation temperature: -20 º C to +55 º C
· Restricted operation temperature: -30º Cto -20 º C and +55 º C to +80 º C
· Storage temperature: -40 º C to +85 º C