This product is purchase by Flipkart site. This performance is the very good. Jiofi you can use 2G or 3G phone or 4G phone.It will be provided HD calling and High speed internet.l will be use 1.5 gb daily and setisfied this product.jio company tell me the speed 150mb/second but it is not actually speed. Actually speed is 2 to 5 mb/second.Jio fi set of micro sdcard.Wi fi range open space in 10 meter. Jifi battery works on 3 to 4 hours. This device con be connected 32 device 2G 3G 4G phone and laptop. Evning time speed is very slow.