For wireless transfer, we use IEEE 802.11g-2003 or 802. llg or Wireless G is an amendment to the IEEE 802.11 specification that extended throughput to up to 54 Mbit/s using the same 2.4 GHz band as 802.11b. This specification under the marketing name of Wi-Fi has been implemented all over the world. 802.llg is the third modulation standard for wireless LANs. It works in the 2.4 GHz band (like 802.11b) but operates at a maximum raw data rate of 54 Mbit/s, or about 19 Mbit/s net throughput (identical to 802.11a core, except for some additional legacy overhead for backward compatibility). 802.l lg hardware is fully backwards compatible with the 802.11b hardware. Details of making b and g work well together occupied much of the lingering technical process. In an 802.llg network, however, the presence of a legacy 802.11b participant will significantly reduce the speed of the overall 802.llg network. Wireless G is used in our system as a communication path from Android to server and vice versa. [6]