SIM900A

Datasheet : forum.researchdesignlab.com/datasheet/SIM900ASpecifications 1.Dual-Band 900/ 1800 MHz  2.small dimensions and cost-effective solutions 3.SIM application toolkitGeneral features * Dual-Band 900/ 1800 MHz* GPRS multi-slot class 10/8* GPRS mobile station class B* Compliant to GSM phase 2/2+  – Class 4 (2 W @900 MHz)  – Class 1 (1 W @ 1800MHz)* Dimensions: 24mm x 24mm x 3mm* Weight: 3.4g* Control via AT commands (GSM 07.07 ,07.05 and     SIMCOM enhanced AT Commands)* SIM application toolkit* Supply voltage range : 3.1 … 4.8V* Low power consumption: 1.5mA(sleep mode)* Operation temperature: -40°C to +85 °C