$ 0 0 General featuresTri-Band GSM/GPRS 900/1800/1900MHz or Quad-Band GSM.GPRS 850/900/1800/1900MHzGPRS multi-slot class 10/8GPRS mobile station class B Compliant to GSM phase 2/2+ Class 4 (2W @ 900MHz) Class 1 (1W @1800/1900MHz)Dimensions: 50mmx33mmx6.2mmWeight: 13.8gControl via AT commands (GSM 07.07, 07.05 and SIMCom enhanced AT Commands)SIM application toolkitSupply voltage range 3.4V - 4.5VLow power consumptionNormal operation temperature: -30°C to +70°CRestricted operation temperature: -35°C to +80°CStorage temperature: -40°C to +85°CMore information: http://projectsmax246.blogspot.com/2011/04/socket-and-gprs.html