UNLOCKED TATA PHOTON DONGLE WITH INBUILT MEMORY CARD SLOT CAN USE AS A MEMORY CARD READER/ PEN DRIVE  max wifi.now your are able to create your own wifi zone.feture of photon max wifi. 1.range of device is 100 meter 2.all india roaming is free 3.connect maximum five device at same time 4.use in car also 5.speed is upto 9.8mbps 6.memory card slot is available in device. CDMA SIM BASE.